Kaufman, R. A. (1988). Identifying and solving problems: A management guide (4th ed.). Social Impacts Publications.
Cita Chicago (17th ed.)Kaufman, Roger A. Identifying and Solving Problems: A Management Guide. 4th ed. [Sydney]: Social Impacts Publications, 1988.
Cita MLA (8th ed.)Kaufman, Roger A. Identifying and Solving Problems: A Management Guide. 4th ed. Social Impacts Publications, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.