Dyfyniad APA

Hartley, J. (1972). Strategies for programmed instruction: An educational technology. Butterworths.

Dyfyniad Arddull Chicago

Hartley, J. Strategies for Programmed Instruction: An Educational Technology. London: Butterworths, 1972.

Dyfyniad MLA

Hartley, J. Strategies for Programmed Instruction: An Educational Technology. Butterworths, 1972.

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