APA aipamena

Krulik, S., & Rudnick, J. A. Problem solving: A handbook for senior high school teachers.

Chicago Style aipamena

Krulik, Stephen, and Jesse A. Rudnick. Problem Solving: A Handbook for Senior High School Teachers. Boston, Allyn and Bacon.

MLA aipamena

Krulik, Stephen, and Jesse A. Rudnick. Problem Solving: A Handbook for Senior High School Teachers.