APA stil citiranja

Hartley, J. (1972). Strategies for programmed instruction: an educational technology: Strategies for programmed instruction: an educational technology (1. izd.). Butterworth & Co.

Chicago stil citiranja

Hartley, John. Strategies for programmed instruction: an educational technology: Strategies for programmed instruction: an educational technology. 1. izd. Butterworth & Co, 1972.

MLA stil citiranja

Hartley, John. Strategies for programmed instruction: an educational technology: Strategies for programmed instruction: an educational technology. 1. izd. Butterworth & Co, 1972.