APA (7th ed.) Citation

American College of Sports Medicine, Healthy Learning Videos, & House, T. (2008). Flex, don't stretch. Healthy Learning.

Chicago Style (17th ed.) Citation

American College of Sports Medicine, Healthy Learning Videos, and Tom House. Flex, Don't Stretch. Monterey, CA: Healthy Learning, 2008.

MLA (9th ed.) Citation

American College of Sports Medicine, et al. Flex, Don't Stretch. Healthy Learning, 2008.