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
Kürti L (2015) Organic chemistry. Streamlining amine synthesis. Science 348:863–864
A journal article with 2 authors
Fehr E, Gächter S (2002) Altruistic punishment in humans. Nature 415:137–140
A journal article with 3 authors
Domnisoru C, Kinkhabwala AA, Tank DW (2013) Membrane potential dynamics of grid cells. Nature 495:199–204
A journal article with 5 or more authors
Hvorup RN, Goetz BA, Niederer M, et al (2007) Asymmetry in the structure of the ABC transporter-binding protein complex BtuCD-BtuF. Science 317:1387–1390
Books and book chapters
Here are examples of references for authored and edited books as well as book chapters.
An authored book
Adams DJ, Dyson PJ, Tavener SJ (2005) Chemistry in Alternative Reaction Media. John Wiley & Sons, Ltd, Chichester, UK
An edited book
Capogna L (2014) Fully Nonlinear PDEs in Real and Complex Geometry and Optics: Cetraro, Italy 2012, Editors: Cristian E. Gutiérrez, Ermanno Lanconelli. Springer International Publishing, Cham
A chapter in an edited book
Bacigalupo J, Delgado R, Muñoz Y, O’Day P (2015) TRP Channels in Visual Transduction. In: Madrid R, Bacigalupo J (eds) TRP Channels in Sensory Transduction. Springer International Publishing, Cham, pp 97–109
Sometimes references to web sites should appear directly in the text rather than in the bibliography. Refer to the Instructions to authors for Surveys in Geophysics.
Andrew E (2014) NASA Scientists Create Biodegradable Fungus Drone. In: IFLScience. Accessed 30 Oct 2018
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 (2016) Federal Research: Information on DOE’s Laboratory-Directed Research and Development Program. U.S. Government Printing Office, Washington, DC
Theses and dissertations
Theses including Ph.D. dissertations, Master's theses or Bachelor theses follow the basic format outlined below.
Ramos E (2013) Emergency department utilization among Medicare enrollees: A project report. Doctoral dissertation, California State University, Long Beach
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
Branch J (2017) The Ultimate Hunt: Sheep. New York Times SP1
References should be cited in the text by name and year in parentheses:
This sentence cites one reference (Kürti 2015). This sentence cites two references (Fehr and Gächter 2002; Kürti 2015).
Here are examples of in-text citations with multiple authors: