Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (8e éd.)

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