Cita APA (7a ed.)

Zander, L. A., & Duddington, N. (1952). Vision and action. Victor Gollancz.

Cita Chicago Style (17a ed.)

Zander, Leon Alexander, y Natalie Duddington. Vision and Action. London: Victor Gollancz, 1952.

Cita MLA (9a ed.)

Zander, Leon Alexander, y Natalie Duddington. Vision and Action. Victor Gollancz, 1952.