There are many different citation styles in use within the sciences. The most common are APA and CSE, but if you read articles that are interdisciplinary you may see the formats developed by the chemistry, engineering, or medical fields, or other scientific disciplines. Ask your professor specifically which to use.
No matter which style, we likely have the style manual or can point you to a guide that will help with the nitty-gritty details of in-text citations and formatting your end bibliography.
The Brandeis library has many resources for improving your writing. Here are a few I like, mostly talking specifically about writing in the sciences: