Hackler, David. <br/><br/>
How charts and drawings help us / 
David Hackler. 
 - Chicago :  Benefic Press,  c1965. 
 - 96 pages :  illustrations (part colored) colored maps, plans (part colored) ;  24 cm. 
 - Supplementary social studies program. Basic concepts series .
<br/><br/><label>LCCN: </label>65016481 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Graphic methods.
<br/><br/><label>LC Class. No.: </label>LB1027  / .H2 
<br/><br/><label>Dewey Class. No.: </label>001