Association for Computing Machinery. Joint Use Group & Faden, B. R. (1971). Computer programs directory 1971. Published for the Joint User Group (JUG) of the Association for Computer Machinery by CCM Information Corp.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAssociation for Computing Machinery. Joint Use Group और Ben R. Faden. Computer Programs Directory 1971. New York: Published for the Joint User Group (JUG) of the Association for Computer Machinery by CCM Information Corp, 1971.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAssociation for Computing Machinery. Joint Use Group और Ben R. Faden. Computer Programs Directory 1971. Published for the Joint User Group (JUG) of the Association for Computer Machinery by CCM Information Corp, 1971.
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