Research, principles, and practices in visual communication 
edited by John Ball and Francis C. Byrnes. 
 - Michigan : [s.n.]  c1960. 
 - 160 p.  ill.  29 cm. 
<br/><br/> "Originally published as a part of the Communications Training Program developed by the National Project in Agricultural Communications for the American Association of Land-Grant Colleges and State Universities." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication