APA (7 वां संस्करण) प्रशस्ति पत्र
Cowan, G. M. (1965). Some aspects of the lexical structure of a Mazatec historical text. Summer Institute of Linguistics, University of Oklahoma.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Cowan, George M. Some Aspects of the Lexical Structure of a Mazatec Historical Text. Norman, [Oklahoma]: Summer Institute of Linguistics, University of Oklahoma, 1965.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Cowan, George M. Some Aspects of the Lexical Structure of a Mazatec Historical Text. Summer Institute of Linguistics, University of Oklahoma, 1965.
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