Black, C. C. (1920). Some aspects of eugenics and the income tax.
Chicago Stili AlıntıBlack, C. Crofton. Some Aspects of Eugenics and the Income Tax. 1920.
MLA AlıntıBlack, C. Crofton. Some Aspects of Eugenics and the Income Tax. 1920.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..