APA (7th ed.) Citation

Art 21, Inc, Sollins, S., Sollins, M., & Miller, W. (2009). Art 21: Art in the twenty-first century 5. Art21, Inc..

Chicago Style (17th ed.) Citation

Art 21, Inc, Susan Sollins, Marybeth Sollins, and Wesley Miller. Art 21: Art in the Twenty-first Century 5. New York: Art21, Inc., 2009.

MLA (9th ed.) Citation

Art 21, Inc, et al. Art 21: Art in the Twenty-first Century 5. Art21, Inc., 2009.