APA (7th ed.) Citation

Janus Films, ITV Studios, Gaumont British Picture Corp, Criterion Collection (Firm), Knowles, B., Twist, D. N., . . . Buchan, J. (2012). The 39 steps (Blu-ray edition.). Criterion Collection : ITV Studios Global Entertainment : Carlton Film Distributors.

Chicago Style (17th ed.) Citation

Janus Films, et al. The 39 Steps. Blu-ray edition. [Irvington, N.Y.]: Criterion Collection : ITV Studios Global Entertainment : Carlton Film Distributors, 2012.

MLA (9th ed.) Citation

Janus Films, et al. The 39 Steps. Blu-ray edition. Criterion Collection : ITV Studios Global Entertainment : Carlton Film Distributors, 2012.