APA (7th ed.) Citation

Summerfield, G. (1968). Voices: The first book. Penguin.

Chicago Style (17th ed.) Citation

Summerfield, Geoffrey. Voices: The First Book. Harmondsworth: Penguin, 1968.

MLA (8th ed.) Citation

Summerfield, Geoffrey. Voices: The First Book. Penguin, 1968.

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