Measuring the Effectiveness of Sound Pictures as Teaching Aids
Arnspiger, Varney Clyde
Measuring the Effectiveness of Sound Pictures as Teaching Aids - New York : Columbia University, 1933. - vii, 156 p. ; 18 cm.
Measuring the Effectiveness of Sound Pictures as Teaching Aids - New York : Columbia University, 1933. - vii, 156 p. ; 18 cm.