APA (7th ed.) Citation

Caldicott, H., Le Lorrain, E., & Nash, T. (1982). If you love this planet. National Film Board of Canada.

Chicago Style (17th ed.) Citation

Caldicott, Helen, Edward Le Lorrain, and Terri Nash. If You Love This Planet. Ottawa, ON: National Film Board of Canada, 1982.

MLA (9th ed.) Citation

Caldicott, Helen, et al. If You Love This Planet. National Film Board of Canada, 1982.