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. 
 - Professional librarian series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Libraries--Automation--United States<br/>MARC formats
<br/><br/><label>Dewey Class. No.: </label>025.3  / 028  / 54