APA (7th ed.) Citation

Clark, Charner, & Murphy. (2007). The giant encyclopedia of math activities. Gryphon House.

Chicago Style (17th ed.) Citation

Clark, Charner, and Murphy. The Giant Encyclopedia of Math Activities. Beltsville, MD: Gryphon House, 2007.

MLA (8th ed.) Citation

Clark, et al. The Giant Encyclopedia of Math Activities. Gryphon House, 2007.