This style is often used in the Natural Sciences, especially Biology. It was formerly called CBE Style (Council of Biology Editors).
CSE Manual 9th EditionThe CSE Manual presents 3 systems for referring to references (also known as citations) within the text of a journal article, book, or other scientific publication: (1) citation–sequence, (2) name–year, and (3) citation–name. These abbreviated references are called in-text references. They refer to a list of references at the end of the document.
ProQuest - Provides abstract/full-text of a wide range of research in biomedicine, biotechnology, zoology and ecology and some aspects of agriculture and veterinary science.
EBSCO -Index/abstract of materials related to agriculture. Includes journals, theses, technical reports, software, patents, audiovisual materials, monographs and other agricultural materials. Produced by the U.S. Department of Agriculture's National Agricultural Library.
Open Access - Million+ e-prints in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance, statistics, electrical engineering and systems science, and economics. arXiv is owned and operated by Cornell University.
(Free) Life Sciences Commons is an Open Access repository of life sciences literature from universities all over the world. Search by keyword, browse by discipline, or view by institution. This is a free database provided as a courtesy by the Whitworth Library, which cannot guarantee access or content.
EBSCO - (1950's-current) Biomedical journal abstracts for medicine, dentistry, veterinary medicine, and the health care system. Also available in public Web Version. Searches abstracts of over 4,800 current biomedical journals.
(Free) PubMed comprises more than 27 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.