APA-viite (7. p.)

Não informado. (1966). Programmed learning and educational technology. Association for Programmed Learning.

Chicago-viite (17. p.)

Não informado. Programmed Learning and Educational Technology. London: Association for Programmed Learning, 1966.

MLA-viite (8. p.)

Não informado. Programmed Learning and Educational Technology. Association for Programmed Learning, 1966.

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