Cita APA (7a ed.)

Horwill, H. W. (1968). A dictionary of modern American usage (2nd ed.). Clarendon.

Cita Chicago Style (17a ed.)

Horwill, H. W. A Dictionary of Modern American Usage. 2nd ed. Oxford: Clarendon, 1968.

Cita MLA (9a ed.)

Horwill, H. W. A Dictionary of Modern American Usage. 2nd ed. Clarendon, 1968.