For tips on how to cite scholarly articles, see the Purdue Online Writing Lab Research and Writing Citation Sources (pick any of the three styles: MLA, APA, or Chicago Manual of Style) or the University of Wisconsin Writer’s Handbook Documentation (again, pick one of the styles).
Note that when I ask for an abstract or summary of an article, I DO NOT expect you to write it yourself; instead, simply copy and paste it as it appears on your screen.
For tips on how to cite laws, proposed laws, and court decisions, see How to Cite Legal Materials or Citing Legal Materials in APA Style. (Note that if you follow the methods noted, it will be apparent to your reader (me) if the law or decision is state or federal.)
For how to cite a regulation, see the APA Style Blog The Rules for Federal Regulations.