Preston, Helen Hardt Seaton. <br/><br/>
A measure for audio-visual programs in schools, 
prepared for the Committee on Visual Aids in Education, by Helen Hardt Seaton. 
 - Washington, D.C.,  1944. 
 - v, 40 p.  23 cm. 
 - American Council on Education. Studies. Ser. II.  Motion pictures in education,  no. 8 .
<br/><br/><label>LCCN: </label>e  46000050  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audio-visual education
<br/><br/><label>LC Class. No.: </label>LB1044  / .A6 no. 8 
<br/><br/><label>Dewey Class. No.: </label>371.33523