LEEDHAM, JOHN. & UNWIN, DERICK. - Programmed Learning in the Schools.

London: Longman, Green & Co, 1965. 1st.ed. "Production and use of Linear programmes for classroom use..Programmed material in the primary stage, from prereading to twelve plus..Programmed material with secondary pupils, up to G.C.E. 'A' Level." Pp, 140, 6 b/w illustrations, name to verso front cover & fep. P/b. G+.

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