APA (7th ed.) Citation

Schaffer, H. R. (1971). The growth of sociability. Penguin books.

Chicago Style (17th ed.) Citation

Schaffer, H. Rudolph. The Growth of Sociability. Harmondsworth: Penguin books, 1971.

MLA (8th ed.) Citation

Schaffer, H. Rudolph. The Growth of Sociability. Penguin books, 1971.

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