its nature and use Wittich, Walter Arno 1910- creator Schuller, Charles Francis joint author. text bibliography nyu New York Harper & Row c1979 1979 6th ed. monographic eng

print

xx, 331 p. : ill. ; 24 cm. Walter A. Wittich, Charles F. Schuller. Includes bibliographies and index. Audio-visual education 371.33 0060471697 \\\78012812 DLC 091008 4628179