Cita APA (7th ed.)

Corrigan, R. E., Corrigan, B. O., & Kaufman, R. A. (1967). A systematic approach to educational problem solving and decision making: Interim materials. Operation PEP.

Cita Chicago (17th ed.)

Corrigan, Robert E., Betty O. Corrigan, i Roger A. Kaufman. A Systematic Approach to Educational Problem Solving and Decision Making: Interim Materials. [Burlingame, Calif.]: Operation PEP, 1967.

Cita MLA (9th ed.)

Corrigan, Robert E., et al. A Systematic Approach to Educational Problem Solving and Decision Making: Interim Materials. Operation PEP, 1967.