Crawford, Walt. <br/><br/>
MARC for library use :  understanding the USMARC formats / 
by Walt Crawford. 
 - White Plains, NY :  Knowledge Industry Publications,  c1984. 
 - x, 222 p. ;  29 cm. 
<br/><br/>Bibliography: p. 205-213. Includes index. 
<br/><br/><label>ISBN: </label>0867291206 : 0867291192 (pbk.) : 0867291206 (hrd.) : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MARC formats--United States.
<br/><br/><label>Dewey Class. No.: </label>025.302854  / CRM 1984