APA (7th ed.) Citation

Hewitt, C. R. (1956). The human sum. Macmillan.

Chicago Style (17th ed.) Citation

Hewitt, Cecil Rolph. The Human Sum. New york: Macmillan, 1956.

MLA (9th ed.) Citation

Hewitt, Cecil Rolph. The Human Sum. Macmillan, 1956.

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