APA (7 वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, Currell, S., & Cogdell, C. (2006). Popular eugenics: National efficiency and American mass culture in the 1930s. Ohio University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, Susan Currell, और Christina Cogdell. Popular Eugenics: National Efficiency and American Mass Culture in the 1930s. Athens, Ohio: Ohio University Press, 2006.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, et al. Popular Eugenics: National Efficiency and American Mass Culture in the 1930s. Ohio University Press, 2006.
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