Introduction to micrographics. 

 - [Silver Spring, Md.  1973] 
 - 26 p.  illus.  28 cm. 
<br/><br/><label>LCCN: </label>73174315 //r81 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Micrographics
<br/><br/><label>LC Class. No.: </label>TR835  / .N32 1973 
<br/><br/><label>Dewey Class. No.: </label>686.4/3