APA استشهاد

Fritz, D. A., & Fritz, R. J. . .. (2009). MARC 21 for everyone: A practical guide (1.). Indiana.

استشهاد بنمط شيكاغو

Fritz, Deborah A., و Richard J. Fritz. MARC 21 for Everyone: A Practical Guide. 1. New Delhi: Indiana, 2009.

MLA استشهاد

Fritz, Deborah A., و Richard J. Fritz. MARC 21 for Everyone: A Practical Guide. 1. Indiana, 2009.