Fritz, D. A., & Fritz, R. J. (2013). MARC21 for everyone: A practical guide. Indiana Publishing House.
芝加哥风格引文Fritz, Deborah A., 与 Richard J. Fritz. MARC21 for Everyone: A Practical Guide. India: Indiana Publishing House, 2013.
MLA引文Fritz, Deborah A., 与 Richard J. Fritz. MARC21 for Everyone: A Practical Guide. Indiana Publishing House, 2013.
警告：这些引文格式不一定是100％准确.