Cita APA (7a ed.)

Steinbeck, J., & Covici, P. (1976). Portable Steinbeck (1st pub., repr.). Penguin Books.

Cita Chicago Style (17a ed.)

Steinbeck, John, y Pascal Covici. Portable Steinbeck. 1st pub., repr. London: Penguin Books, 1976.

Cita MLA (9a ed.)

Steinbeck, John, y Pascal Covici. Portable Steinbeck. 1st pub., repr. Penguin Books, 1976.