APA (7 वां संस्करण) प्रशस्ति पत्र
Ford, J. A. (1969). A comparison of formative cultures in the Americas: Diffusion or the psychic unity of man. Smithsonian Institution Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Ford, James Alfred. A Comparison of Formative Cultures in the Americas: Diffusion or the Psychic Unity of Man. Washington: Smithsonian Institution Press, 1969.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Ford, James Alfred. A Comparison of Formative Cultures in the Americas: Diffusion or the Psychic Unity of Man. Smithsonian Institution Press, 1969.
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