The style is either built in or you can download a CSL file that is supported by most references management programs.
BibTeX syles are usually part of a LaTeX template. Check the instructions to authors if the publisher offers a LaTeX template for this journal.
Those examples are references to articles in scholarly journals and how they are supposed to appear in your bibliography.
Not all journals organize their published articles in volumes and issues, so these fields are optional. Some electronic journals do not provide a page range, but instead list an article identifier. In a case like this it's safe to use the article identifier instead of the page range.
A journal article with 1 author
Dinman JD. Molecular biology: Entry signals control development. Nature. 2015 Jan 1;517(7532):24–5.
A journal article with 2 authors
Godley LA, Mondragón A. Molecular biology. Preference by exclusion. Science. 2011 Feb 25;331(6020):1017–8.
A journal article with 3 authors
Marshall CB, Fletcher GL, Davies PL. Hyperactive antifreeze protein in a fish. Nature. 2004 May 13;429(6988):153.
A journal article with 7 or more authors
Damanik FFR, Rothuizen TC, van Blitterswijk C, Rotmans JI, Moroni L. Towards an in vitro model mimicking the foreign body response: tailoring the surface properties of biomaterials to modulate extracellular matrix. Sci Rep. 2014 Sep 19;4:6325.
Books and book chapters
Here are examples of references for authored and edited books as well as book chapters.
An authored book
Chakrabarty P. A Guide to Academia. Oxford, UK: Wiley-Blackwell; 2012.
An edited book
Probst CW, Hankin C, Hansen RR, editors. Semantics, Logics, and Calculi: Essays Dedicated to Hanne Riis Nielson and Flemming Nielson on the Occasion of Their 60th Birthdays. 1st ed. 2016. Cham: Springer International Publishing; 2016. X, 345 p. 96 illus. in color. (Lecture Notes in Computer Science; vol. 9560).
A chapter in an edited book
Boulesteix A-L. Which Resampling-Based Error Estimator for Benchmark Studies? A Power Analysis with Application to PLS-LDA. In: Abdi H, Esposito Vinzi V, Russolillo G, Saporta G, Trinchera L, editors. The Multiple Facets of Partial Least Squares and Related Methods: PLS, Paris, France, 2014. Cham: Springer International Publishing; 2016. p. 45–57. (Springer Proceedings in Mathematics & Statistics).
Sometimes references to web sites should appear directly in the text rather than in the bibliography. Refer to the Instructions to authors for Nephrology.
Hale T. Drones Capture Stunning Images Of Orca Pod [Internet]. IFLScience. IFLScience; 2015 [cited 2018 Oct 30]. Available from: https://www.iflscience.com/plants-and-animals/incredible-drone-images-orcas-coast-seattle/
This example shows the general structure used for government reports, technical reports, and scientific reports. If you can't locate the report number then it might be better to cite the report as a book. For reports it is usually not individual people that are credited as authors, but a governmental department or agency like "U. S. Food and Drug Administration" or "National Cancer Institute".
Government Accountability Office. Utilization of the United States Coast Guard High Endurance Cutter Fleet. Washington, DC: U.S. Government Printing Office; 1970 Nov. Report No.: B-114851.
Theses and dissertations
Theses including Ph.D. dissertations, Master's theses or Bachelor theses follow the basic format outlined below.
Harris RH. Comparing the Effects of Traditional Face-to-face, Technology-Based, and Blended Instructional Strategies in a Post-Secondary Spanish Language Learning Environment [Doctoral dissertation]. [Scottsdale, AZ]: Northcentral University; 2017.
News paper articles
Unlike scholarly journals, news papers do not usually have a volume and issue number. Instead, the full date and page number is required for a correct reference.
New York Times article
Bilefsky D. Royal Retirement at 95 Halts Frenzied Rumors. New York Times. 2017 May 4;A10.
References should be cited in the text by sequential numbers in superscript:
This sentence cites one reference 1. This sentence cites two references 1,2. This sentence cites four references 1–4.