APA (7th ed.) Citation

Mittler, P. J. (1971). The study of twins. Penguin.

Chicago Style (17th ed.) Citation

Mittler, Peter J. The Study of Twins. Harmondsworth: Penguin, 1971.

MLA (9th ed.) Citation

Mittler, Peter J. The Study of Twins. Penguin, 1971.

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