APA (7th ed.) Citation

Ahlberg, J., & Ahlberg, A. (1976). The old joke book. Kestrel Books.

Chicago Style (17th ed.) Citation

Ahlberg, Janet, and Allan Ahlberg. The Old Joke Book. Harmondsworth: Kestrel Books, 1976.

MLA (9th ed.) Citation

Ahlberg, Janet, and Allan Ahlberg. The Old Joke Book. Kestrel Books, 1976.