APA (7th ed.) Citation

Wolfe, W. B. (1957). How to be happy though human / by W.B. Wolfe. Penguin.

Chicago Style (17th ed.) Citation

Wolfe, W. B. How to Be Happy Though Human / by W.B. Wolfe. Penguin, 1957.

MLA (9th ed.) Citation

Wolfe, W. B. How to Be Happy Though Human / by W.B. Wolfe. Penguin, 1957.

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