Association for Educational and Training Technology, Page, G. T., & Whitlock, Q. A. (1979). Educational technology twenty years on / edited for the Association for Educational and Training Technology by G. Terry Page and Quentin A. Whitlock. Kogan Page.
Chicago Style (17th ed.) CitationAssociation for Educational and Training Technology, G. Terry Page, and Quentin A. Whitlock. Educational Technology Twenty Years on / Edited for the Association for Educational and Training Technology by G. Terry Page and Quentin A. Whitlock. London: Kogan Page, 1979.
MLA (9th ed.) CitationAssociation for Educational and Training Technology, et al. Educational Technology Twenty Years on / Edited for the Association for Educational and Training Technology by G. Terry Page and Quentin A. Whitlock. Kogan Page, 1979.