APA (7th ed.) Citation

Beals, K., & Willard, C. (1994). Mystery festival: Teacher's guide. Great Explorations in Math and Science (GEMS).

Chicago Style (17th ed.) Citation

Beals, Kevin, and Carolyn Willard. Mystery Festival: Teacher's Guide. Berkeley, CA: Great Explorations in Math and Science (GEMS), 1994.

MLA (9th ed.) Citation

Beals, Kevin, and Carolyn Willard. Mystery Festival: Teacher's Guide. Great Explorations in Math and Science (GEMS), 1994.