アースキン・メイ (書籍)
A Treatise on the Law, Privileges, Proceedings and Usage of Parliament (英語) (9th ed.). London: Butterworths.
May, Sir Thomas Erskine (1893). Palgrave, Sir Reginald F. D.; Bonham-Carter, Alfred (eds.). A Treatise on the Law, Privileges, Proceedings and Usage of Parliament (英語) (10th ed.). London: Clowes. OCLC 1017384090。
May, Sir Thomas Erskine (1906). Webster, Thomas Lonsdale; Grey, William Edward (eds.). A Treatise on the Law, Privileges, Proceedings and Usage of Parliament (英語) (11th ed.). London: Clowes and Sons. OCLC 1081110103。
May, Sir Thomas Erskine (1917). Webster, Thomas Lonsdale (ed.). A Treatise on the Law, Privileges, Proceedings and Usage of Parliament (英語) (12th ed.