371.333 L Levanson, Willian B Teaching throngh radio and television . Rev . ed. by William B . Levanson [and] Edward Stasheff New York, Rinchart [1952] 560 p . ilus . 22 cm . (Rinehart radio and television series) Primera ed . publicada en 1945 bajo el título : Teaching through radio . "General bibliography" : p . 547-553 .