APA (7th ed.) Citation

Krulik, S., & Rudnick, J. A. (1988). Problem-solving: A handbook for elementary school teachers. Allyn and Bacon.

Chicago Style (17th ed.) Citation

Krulik, Stephen, and Jesse A. Rudnick. Problem-solving: A Handbook for Elementary School Teachers. Boston u.a: Allyn and Bacon, 1988.

MLA (9th ed.) Citation

Krulik, Stephen, and Jesse A. Rudnick. Problem-solving: A Handbook for Elementary School Teachers. Allyn and Bacon, 1988.