APA-referens (7:e uppl.)
Marshack, A. (1972). The roots of civilization: The cognitive beginnings of man's first art, symbol, and notation (Primera edición.). McGraw-Hill.
Chicago-referens (17:e uppl.)
Marshack, Alexander. The Roots of Civilization: The Cognitive Beginnings of Man's First Art, Symbol, and Notation. Primera edición. New York: McGraw-Hill, 1972.
MLA-referens (9:e uppl.)
Marshack, Alexander. The Roots of Civilization: The Cognitive Beginnings of Man's First Art, Symbol, and Notation. Primera edición. McGraw-Hill, 1972.
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