Paul, D. B. (1991). Demography and degeneration: Eugenics and the declining birthrate in twentieth-century Britain.
शिकागो स्टाइल उद्धरणPaul, Diane B. Demography and Degeneration: Eugenics and the Declining Birthrate in Twentieth-century Britain. 1991.
एमएलए उद्धरणPaul, Diane B. Demography and Degeneration: Eugenics and the Declining Birthrate in Twentieth-century Britain. 1991.
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