Is there a preferred source to link to for citations, or is it good for a citation to be followed by a list of sources for it so that if one is down others can be used. I've skipped the pay for access sources like WestLaw and Lexis as being less accessible.
In the first part it might be a choice for example between (depending on jurisdiction and other factors):
- CourtListener Brown v. Board of Education, 347 U.S. 483 (1954)
- FindLaw BROWN v. BOARD OF EDUCATION, 347 U.S. 483 (1954)
- Justia.com Brown v. Board of Education, 347 U.S. 483 (1954)
and separately Wikipedia which doesn't have the text, but discusses the case.
It may be that each of these are lacking certain citations and it is not possible to pick a single source, falling back to an order of established preference.
In the second case it might be:
See also What format should we encourage for citations? for the separate discussion of how to present excerpted text from cited materials.