APA (7th ed.) Citation

Maryknoll World Video, Ukweil Video, & Quinn, D. (1991). Earthkeepers. Maryknoll World Video.

Chicago Style (17th ed.) Citation

Maryknoll World Video, Ukweil Video, and Dick Quinn. Earthkeepers. Maryknoll, NY: Maryknoll World Video, 1991.

MLA (9th ed.) Citation

Maryknoll World Video, et al. Earthkeepers. Maryknoll World Video, 1991.