APA (7th ed.) Citation

Steinbeck, J. (1975). Steinbeck: A life in letters. Viking Press.

Chicago Style (17th ed.) Citation

Steinbeck, John. Steinbeck: A Life in Letters. New York: Viking Press, 1975.

MLA (9th ed.) Citation

Steinbeck, John. Steinbeck: A Life in Letters. Viking Press, 1975.