APA ציטוט

Kaufman, R. A. (1976). Identifying and solving problems: A system approach. University Associates.

Chicago Style (17th ed.) Citation

Kaufman, Roger A. Identifying and Solving Problems: A System Approach. La Jolla, Calif.: University Associates, 1976.

ציטוט MLA

Kaufman, Roger A. Identifying and Solving Problems: A System Approach. University Associates, 1976.