APA (7th ed.) Citation

Posamentier, A. S., & Krulik, S. (2008). Problem-solving strategies for efficient and elegant solutions, grades 6-12: A resource for the mathematics teacher (2nd ed.). Corwin Press.

Chicago Style (17th ed.) Citation

Posamentier, Alfred S., and Stephen Krulik. Problem-solving Strategies for Efficient and Elegant Solutions, Grades 6-12: A Resource for the Mathematics Teacher. 2nd ed. Thousand Oaks, CA: Corwin Press, 2008.

MLA (9th ed.) Citation

Posamentier, Alfred S., and Stephen Krulik. Problem-solving Strategies for Efficient and Elegant Solutions, Grades 6-12: A Resource for the Mathematics Teacher. 2nd ed. Corwin Press, 2008.