Author, A. A., & Author, B. B. (Year). Title of headnote. In Title of publication (Vol. #, Issue #, pp. xx-xx). Publisher.
Example:
_The United States v. Nixon_. _United States Reports_, 418 US 683 (1974).
If citing from _West's Supreme Court Reporter:_
_The United States v. Nixon_. _West's Supreme Court Reporter_, 94 S.Ct. 3090 (1974).