Common Citation Mistakes:
The 8th edition of the manual, with it's author changed to the CSE (Council of Science Editors) instead of the 7th edition by the CBE (Council of Biology Editors) that is listed in the Grad Studies Policy Manual last updated in April 2019.
This is the required format for M.S. Environmental Studies theses. However, check with your advisor. If you might publish the work as an article, you should be able to use that journals citation style. Instructions are using listed on the journals Author Instructions webpages. And be consistent.