APA (7th ed.) Citation

ECA World Fitness (Firm), Healthy Learning Videos, & Herman, E. (2009). Physioball. Healthy Learning.

Chicago Style (17th ed.) Citation

ECA World Fitness (Firm), Healthy Learning Videos, and Ellie Herman. Physioball. Monterey, CA: Healthy Learning, 2009.

MLA (9th ed.) Citation

ECA World Fitness (Firm), et al. Physioball. Healthy Learning, 2009.