Cita APA (7a ed.)

Polansky, N. A., Borgman, R. D., & De Saix, C. (1972). Roots of futility. Jossey-Bass.

Cita Chicago Style (17a ed.)

Polansky, Norman A., Robert D. Borgman, y Christine De Saix. Roots of Futility. San Francisco [u.a.]: Jossey-Bass, 1972.

Cita MLA (9a ed.)

Polansky, Norman A., et al. Roots of Futility. Jossey-Bass, 1972.