Cita APA (7a ed.)

Kranzberg, M., & Gies, J. (1975). By the sweat of thy brow: Work in the Western world. Putnam.

Cita Chicago Style (17a ed.)

Kranzberg, Melvin, y Joseph Gies. By the Sweat of Thy Brow: Work in the Western World. New York: Putnam, 1975.

Cita MLA (9a ed.)

Kranzberg, Melvin, y Joseph Gies. By the Sweat of Thy Brow: Work in the Western World. Putnam, 1975.