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
Brookfield JF. Predicting the future. Nature. 2001 Jun 28;411(6841):999.
A journal article with 2 authors
Koeller KM, Wong CH. Enzymes for chemical synthesis. Nature. 2001 Jan 11;409(6817):232–40.
A journal article with 3 authors
Stach S, Benard J, Giurfa M. Local-feature assembling in visual pattern recognition and generalization in honeybees. Nature. 2004 Jun 17;429(6993):758–61.
A journal article with 7 or more authors
Kuo WJ, Sjöström T, Chen YP, Wang YH, Huang CY. Intuition and deliberation: two systems for strategizing in the brain. Science. 2009 Apr 24;324(5926):519–22.
Books and book chapters
Here are examples of references for authored and edited books as well as book chapters.
Raghavendra P, Raskhodnikova S, Jansen K, Rolim JDP, editors. Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques: 16th International Workshop, APPROX 2013, and 17th International Workshop, RANDOM 2013, Berkeley, CA, USA, August 21-23, 2013. Proceedings. Berlin, Heidelberg: Springer; 2013. XIV, 716 p. 48 illus. (Lecture Notes in Computer Science; vol. 8096).
A chapter in an edited book
Marbach-Ad G, Egan LC, Thompson KV. Preparing Graduate Students for Their Teaching Responsibilities. In: Egan LC, Thompson KV, editors. A Discipline-Based Teaching and Learning Center: A Model for Professional Development. Cham: Springer International Publishing; 2015. p. 115–83.
Sometimes references to web sites should appear directly in the text rather than in the bibliography. Refer to the Instructions to authors for Transfusion.
Andrew D. Humans Are Wired For Prejudice But That Doesn’t Have To Be The End Of The Story [Internet]. IFLScience. IFLScience; 2016 [cited 2018 Oct 30]. Available from: https://www.iflscience.com/brain/humans-are-wired-for-prejudice-but-that-doesnt-have-to-be-the-end-of-the-story/
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. Amtrak: Deteriorated Financial and Operating Conditions Threaten Long-Term Viability. Washington, DC: U.S. Government Printing Office; 1995 Mar. Report No.: T-RCED-95-142.
Theses and dissertations
Theses including Ph.D. dissertations, Master's theses or Bachelor theses follow the basic format outlined below.
Williams C. It’s not a beauty pageant!: An examination of leadership development through Alaska native pageants [Doctoral dissertation]. [Tucson, AZ]: University of Arizona; 2013.
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
Ortved J. Model Makes A Stand With Feminist Art. New York Times. 2017 Jul 6;D5.
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.