APA (7th ed.) Citation

Adams, P., & Adams, S. (1982). Knockback. Duckworth.

Chicago Style (17th ed.) Citation

Adams, Peter, and Shirley Adams. Knockback. London: Duckworth, 1982.

MLA (9th ed.) Citation

Adams, Peter, and Shirley Adams. Knockback. Duckworth, 1982.