APA (7th ed.) Citation

Levi, P. (1985). If not now, when? Summit Books.

Chicago Style (17th ed.) Citation

Levi, Primo. If Not Now, When? New York: Summit Books, 1985.

MLA (9th ed.) Citation

Levi, Primo. If Not Now, When? Summit Books, 1985.

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