Schmandt-Besserat, D., & Hallo, W. W. (1992). Before writing: From counting to cuneiform (First edition.). University of Texas Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSchmandt-Besserat, Denise, और William W. Hallo. Before Writing: From Counting to Cuneiform. First edition. Austin: University of Texas Press, 1992.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSchmandt-Besserat, Denise, और William W. Hallo. Before Writing: From Counting to Cuneiform. First edition. University of Texas Press, 1992.
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