Wittich, W. A.
Audio-visual materials : their nature and use / W. A. Wittich - 2nd ed. - New York : Harper, 1957. - xxvii, 570 p. : Plats. ills.; 21 cm.
Libraries
025.173 / WIA
Audio-visual materials : their nature and use / W. A. Wittich - 2nd ed. - New York : Harper, 1957. - xxvii, 570 p. : Plats. ills.; 21 cm.
Libraries
025.173 / WIA