Cita APA (7th ed.)

Fritz, D. A., & Fritz, R. J. (2003). MARC21 for everyone: A practical guide. American Library Association.

Cita Chicago (17th ed.)

Fritz, Deborah A., i Richard J. Fritz. MARC21 for Everyone: A Practical Guide. Chicago: American Library Association, 2003.

Cita MLA (9th ed.)

Fritz, Deborah A., i Richard J. Fritz. MARC21 for Everyone: A Practical Guide. American Library Association, 2003.