Association for Programmed Learning and Educational Technology, Evans, L., & Leedham, J. (1975). Educational technology for continuous education. Kogan Page.
Παραπομπή σε μορφή Chicago (17η εκδ.)Association for Programmed Learning and Educational Technology, L. Evans, και John Leedham. Educational Technology for Continuous Education. London: Kogan Page, 1975.
Παραπομπή σε μορφή MLA (8th εκδ.)Association for Programmed Learning and Educational Technology, et al. Educational Technology for Continuous Education. Kogan Page, 1975.
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