Nelson B. Henry <br/><br/>
Audio-visual materials of instruction; prepared by the Society's Committee  

 - Chicago, Ill.   University of Chicago Press  1949 
 - 320 pages    illustrations  23 cm 
 - Yearbook of the National Society fr the Study of Education, /  48 th, part 1. .
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<br/><br/><label>Subjects--Uniform Titles: </label><br/>  Visual education.
<br/><br/><label>Dewey Class. No.: </label>R  370.723  N227n