Randall, B. (1991). When is a pig a hogn: A guide to confoundingly related English words. Prentice Hall.
Chicago-referens (17:e uppl.)Randall, Bernice. When Is a Pig a Hogn: A Guide to Confoundingly Related English Words. New York: Prentice Hall, 1991.
MLA-referens (9:e uppl.)Randall, Bernice. When Is a Pig a Hogn: A Guide to Confoundingly Related English Words. Prentice Hall, 1991.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.