If you are writing for a class, your instructor should provide a preferred citation style for papers or lab reports that you will write. If they have not, you can ask them for their preferred citation style. This page will help you find examples of the citation style you need and provides resources explaining how to attribute content correctly, why it is important, and provides links to people who can help you do this if you want to make sure you are doing it correctly.
These books and links will show you common citation formats. Your class or project may require a specific style, usually from the author guidelines of a scientific journal. To find one a specific journal citation styles, use a search engine to search for the name of the journal and "citation style" or the journal name and "author guidelines". If you need assistance finding a style guide, please contact your subject librarian.
If you use a reference or bibliography manager such as Zotero or EndNote, you can download supplemental styles for them to match the requirements of your class, professor, or journal.