APA (7th ed.) Citation

Rodgers, F. A., Treffinger, D. J., & Ripple, R. E. (1971). Programmed Instruction in Creative Problem Solving. Educational Leadership, 28(6), 667.

Chicago Style (17th ed.) Citation

Rodgers, Frederick A., Donald J. Treffinger, and Richard E. Ripple. "Programmed Instruction in Creative Problem Solving." Educational Leadership 28, no. 6 (1971): 667.

MLA (9th ed.) Citation

Rodgers, Frederick A., et al. "Programmed Instruction in Creative Problem Solving." Educational Leadership, vol. 28, no. 6, 1971, p. 667.