Cita APA

Discovery Communications, I., Gedeon Programmes., Glacialis Productions., The National Film Board of Canada., Henríquez, P., Lemire, J., & Piantanida, T. (2001). Biomas. [S.l.]: Discovery Communications.

Citación estilo Chicago

Discovery Communications, Inc., Gedeon Programmes, Glacialis Productions, The National Film Board of Canada, Patricio Henríquez, Jean Lemire, y Thierry Piantanida. Biomas. [S.l.]: Discovery Communications, 2001.

Cita MLA

Discovery Communications, Inc., et al. Biomas. [S.l.]: Discovery Communications, 2001.