APA (7 वां संस्करण) प्रशस्ति पत्र
Hirschfeld, G. (1973). The people: Growth and Survival. First cycle. Aldine Published for the Council for the Study of Mankind.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Hirschfeld, Gerhard. The People: Growth and Survival. First Cycle. Chicago: Aldine Published for the Council for the Study of Mankind, 1973.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Hirschfeld, Gerhard. The People: Growth and Survival. First Cycle. Aldine Published for the Council for the Study of Mankind, 1973.
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