Dyfyniad APA
ebrary, Inc, Currell, S., & Cogdell, C. (2006). Popular eugenics: National efficiency and American mass culture in the 1930s. Ohio University Press.
Dyfyniad Arddull Chicago
ebrary, Inc, Susan Currell, and Christina Cogdell. Popular Eugenics: National Efficiency and American Mass Culture in the 1930s. Athens, Ohio: Ohio University Press, 2006.
Dyfyniad MLA
ebrary, Inc, et al. Popular Eugenics: National Efficiency and American Mass Culture in the 1930s. Ohio University Press, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.