Carey, Jane (2012-11-01). ""The Racial Imperatives of Sex: birth control and eugenics in Britain, the United States and Australia in the interwar years"". Women's History Review. 21 (5): 733–752. doi:10.1080/09612025.2012.658180. S2CID145199321.
Carey, Jane (2012-11-01). ""The Racial Imperatives of Sex: birth control and eugenics in Britain, the United States and Australia in the interwar years"". Women's History Review. 21 (5): 733–752. doi:10.1080/09612025.2012.658180. S2CID145199321.