APA (7th ed.) Citation

Partridge, E. (1999). Usage and abusage: A guide to good english (3a. ed.). Penguin Books.

Chicago Style (17th ed.) Citation

Partridge, Eric. Usage and Abusage: A Guide to Good English. 3a. ed. Harmondsworth: Penguin Books, 1999.

MLA (9th ed.) Citation

Partridge, Eric. Usage and Abusage: A Guide to Good English. 3a. ed. Penguin Books, 1999.