Koon, Cline Morgan,  1894- <br/><br/>
Sources of visual aids and equipment for instructional use in schools, 
compiled by Cline M. Koon. 
 - Washington,  U.S. Govt. Print. Off.,  1937. 
 - iii, 44 p.  23 cm. 
 - U.S. Office of Education. Pamphlet  no. 80 .
<br/><br/> Later edition by U.S. Office of Education. 
<br/><br/>L111.A75 with: Safety and health of the school child / James Frederick Rogers. Washington : U.S. Govt. Print. Off., 1937. Bound together subsequent to publication. 
<br/><br/><label>LCCN: </label>e  37000364  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Motion pictures--Catalogs.<br/>Slides (Photography)--Catalogs.<br/>Visual education.
<br/><br/><label>LC Class. No.: </label>L111  / .A75 no. 80