CSE is the citation style of the Council of Science Editors, and it is commonly used for scientific writing. CSE allows three different systems for in text citation style and ordering your reference list; you must pick one and be consistent.
References in the reference list are formatted the same regardless of which system you use.
The U of A Library's CSE-style QuickGuide, available in PDF and Google Doc formats, gives brief introductory information as well as templates and examples of the most common kinds of references, using the Name-Year system.
CSE's own QuickGuide includes examples of how to cite different types of sources using the three systems of CSE style (citation-sequence, citation-name, and name-year):