APA (7th ed.) Citation

King, C., & Kennedy, R. (1966). The twenty-two letters / (by) Clive King ; illustrated by Richard Kennedy. Penguin.

Chicago Style (17th ed.) Citation

King, Clive, and Richard Kennedy. The Twenty-two Letters / (by) Clive King ; Illustrated by Richard Kennedy. Harmondsworth: Penguin, 1966.

MLA (9th ed.) Citation

King, Clive, and Richard Kennedy. The Twenty-two Letters / (by) Clive King ; Illustrated by Richard Kennedy. Penguin, 1966.

Warning: These citations may not always be 100% accurate.