Numbers, R. L., & Stephens, L. D. Darwinism in the American South: Ronald L. Numbers. Lester D. Stephens. Disseminating darwinism : the role of place, race, religion, and gender.(2001).
Lua i Stíl Chicago (17ú heag.)Numbers, Ronald L., agus Lester D. Stephens. "Darwinism in the American South: Ronald L. Numbers. Lester D. Stephens." Disseminating Darwinism : The Role of Place, Race, Religion, and Gender.(2001) .
Lua MLA (8ú heag.)Numbers, Ronald L., agus Lester D. Stephens. "Darwinism in the American South: Ronald L. Numbers. Lester D. Stephens." Disseminating Darwinism : The Role of Place, Race, Religion, and Gender.(2001), .
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