Cita APA (7a ed.)

Gaumont British Picture Corp, Hitchcock, A., Donat, R., & Carroll, M. (2000). The 39 steps =: 39 escalones. Filmax home video.

Cita Chicago Style (17a ed.)

Gaumont British Picture Corp, Alfred Hitchcock, Robert Donat, y Madeleine Carroll. The 39 Steps =: 39 Escalones. Barcelona: Filmax home video, 2000.

Cita MLA (9a ed.)

Gaumont British Picture Corp, et al. The 39 Steps =: 39 Escalones. Filmax home video, 2000.