"Thomson, G. (1974). The human essence: The sources of science and art. China Policy Study Group.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"Thomson, George". The Human Essence: The Sources of Science and Art. China Policy Study Group, 1974.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"Thomson, George". The Human Essence: The Sources of Science and Art. China Policy Study Group, 1974.
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