May, E. (1989). Erskine May's treatise on the law, privileges, proceedings and usage of parliament (21. ed.). Butterworth.
Chicago Style (17th ed.) CitationMay, Erskine. Erskine May's Treatise on the Law, Privileges, Proceedings and Usage of Parliament. 21. ed. London: Butterworth, 1989.
MLA (9th ed.) CitationMay, Erskine. Erskine May's Treatise on the Law, Privileges, Proceedings and Usage of Parliament. 21. ed. Butterworth, 1989.
Warning: These citations may not always be 100% accurate.