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
Balter M (2000) ARCHAEOLOGY: Paintings in Italian Cave May Be Oldest Yet. Science 290:419–421
A journal article with 2 authors
Martin TJ, Mundy GR (2007) Bone metastasis: can osteoclasts be excluded? Nature 445:E19; discussion E19-20
A journal article with 3 authors
Ahn Y-Y, Bagrow JP, Lehmann S (2010) Link communities reveal multiscale complexity in networks. Nature 466:761–764
A journal article with 5 or more authors
Berezovsky J, Mikkelsen MH, Gywat O, et al (2006) Nondestructive optical measurements of a single electron spin in a quantum dot. Science 314:1916–1920
Books and book chapters
Here are examples of references for authored and edited books as well as book chapters.
Larco N (2014) Site Design for Multifamily Housing: Creating Livable, Connected Neighborhoods. Island Press/Center for Resource Economics, Washington, DC
A chapter in an edited book
Ridgway A, Quiñones G, Li L (2015) Dimensions of Play Activity. In: Quiñones G, Li L (eds) Early Childhood Pedagogical Play: A Cultural-Historical Interpretation Using Visual Methodology. Springer, Singapore, pp 47–68
Sometimes references to web sites should appear directly in the text rather than in the bibliography. Refer to the Instructions to authors for Symbiosis.
Hale T (2015) Japan Will Open A Fully Robotic Lettuce Farm By 2017. 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 (2008) Radio Communications: Congressional Action Needed to Ensure Agencies Collaborate to Develop a Joint Solution. 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.
Ton N-Q (2015) A hierarchical wireless network architecture for building automation and control systems: Implementation and simulation study. 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
Cooper M, Pogrebin R (2017) Concern Over Gala As Trumps Bow Out. New York Times C1
References should be cited in the text by name and year in parentheses:
This sentence cites one reference (Balter 2000). This sentence cites two references (Balter 2000; Martin and Mundy 2007).
Here are examples of in-text citations with multiple authors: