Fritz. (2003). MARC21 for everyone: A practical guide. American Library Association.
Chicago Style (17th ed.) CitationFritz. MARC21 for Everyone: A Practical Guide. Chicago: American Library Association, 2003.
MLA (8th ed.) CitationFritz. MARC21 for Everyone: A Practical Guide. American Library Association, 2003.
Warning: These citations may not always be 100% accurate.