MARC 21 format for bibliographic data  including guidelines for content designation 
prepared by Network Development and MARC Standards Office, Library of Congress in cooperation with Standards and Support, Library and Archives Canada, Bibliographic Standards and Systems, British Library. 
 - 1999 ed. 
 - Washington  Ottawa  Library of Congress, Cataloging Distribution Service  Library and Archives Canada  1999- 
 - v. (loose-leaf)  28 cm. 
 - 
<br/><br/> Second publisher varies: National Library of Canada, 1999-2003.  Description based on: update no. 6 (Oct. 2005). 
<br/><br/>Includes bibliographical references . 
<br/><br/>Prepared in cooperation with Standards and Support, National Library of Canada, 1999-<update no. 3 (Oct. 2002)>; Standards and Support, National Library of Canada and the National Bibliographic Service, British Library, -update no. 4 (Oct. 2003). 
<br/><br/>Merger of: USMARC format for bibliographic data. 1994 ed.and: Canadian MARC communication format for bibliographic data. 
<br/><br/><label>ISBN: </label>9780844409894 0660177714 (v. 2) 9780660177717 (v. 2) 0660179490 9780660179490 
<br/><br/><label>LCCN: </label>2007231705 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MARC formats
<br/><br/><label>LC Class. No.: </label>Z699.35.M28 
<br/><br/><label>GPO Item No.: </label>0815 0815 (online) 0815-G-01 
<br/><br/><label>Gov. Doc. Class. No.: </label>LC 30.2:B 47/2/ LC 30.25/2: