Bunn, J. H. (1981). The Dimensionality of Signs, Tools, and Models: An Introduction. Indiana University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBunn, James H. The Dimensionality of Signs, Tools, and Models: An Introduction. Indiana University Press, 1981.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBunn, James H. The Dimensionality of Signs, Tools, and Models: An Introduction. Indiana University Press, 1981.
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