00557nam a2200169Ia 4500 62343 BIBL 20160527191611.0 920512s1954||||mx a |||||||00110|spa|d McKown, Harry Charles 134064 Local Educación audio-visual por Harry C. McKnown y Alvin B. Roberts. México U.T.E.H.A. c1954. 581 p. Includes bibliographical references and index. Audio Visual education. 55941 Local Roberts, Alvin B., jt. au. 160348 Local 47856 47856 0 0 0 371_330000000000000_M159 0 evl 150439 10 10 1 2016-05-27 90172 0 371.33 M159 80000000602550 2016-05-27 00:00:00 r:62343 z:NCC:D 6