APA (7th ed.) Citation

Steinbeck, J., Covici, P., & Fensch, T. (1979). Steinbeck and Covici: The story of a friendship. P. S. Eriksson.

Chicago Style (17th ed.) Citation

Steinbeck, John, Pascal Covici, and Thomas Fensch. Steinbeck and Covici: The Story of a Friendship. Middlebury, Vt.: P. S. Eriksson, 1979.

MLA (9th ed.) Citation

Steinbeck, John, et al. Steinbeck and Covici: The Story of a Friendship. P. S. Eriksson, 1979.