Coltharp, J <br/><br/>
Production of 2*2 inch Slides for School use 

 - Texas:  The University Texas,  1958. 
 - 79p.;  22cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education
<br/><br/><label>Dewey Class. No.: </label>371.33522  / COL