00877cam a2200277 4500 2645071 BD-DhUL 20160120154307.0 710119s1968 enkab bc 000 0 eng 67029177 0080035663 DLC DLC DLC BD-DhUL LB1028.7 .D85 1968 621.380743 DUE Educational electronics equipment, 1967-68 / general editors, G. W. A. Dummer and J. Mackenzie Robertson. 1st ed. Oxford ; New York : Pergamon, 1968. xviii, 1129 p. : ill., maps ; 28 cm. GBP 15.00 Includes index. Teaching machines Catalogs. Electronic apparatus and appliances Catalogs. Dummer, G. W. A. ed. Robertson, J. Mackenzie, jt. ed. ddc REF 45659 45659 0 0 ddc 0 621_380743000000000_DUE 1 REF 75224 DUSL DUSL REF 1972-02-05 Purchased 621.380743 DUE A80851 2016-01-20 2016-01-20 REF