APA (7th ed.) Citation

Napier, J. R. (1971). The roots of mankind (1. publ.). Allen & Unwin.

Chicago Style (17th ed.) Citation

Napier, John Russell. The Roots of Mankind. 1. publ. London: Allen & Unwin, 1971.

MLA (9th ed.) Citation

Napier, John Russell. The Roots of Mankind. 1. publ. Allen & Unwin, 1971.

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