Cita APA (7th ed.)

Fritz, D. A., & Fritz, R. J. (2013). MARC21 for everyone: A practical guide. Indiana Publishing House.

Cita Chicago (17th ed.)

Fritz, Deborah A., i Richard J. Fritz. MARC21 for Everyone: A Practical Guide. India: Indiana Publishing House, 2013.

Cita MLA (9th ed.)

Fritz, Deborah A., i Richard J. Fritz. MARC21 for Everyone: A Practical Guide. Indiana Publishing House, 2013.