APA-viite

(2010). Fifty Years' Progress of the American Negro in Health and Sanitation. American Public Health Association.

Chicago-tyylinen lähdeviittaus

Fifty Years' Progress of the American Negro in Health and Sanitation. American Public Health Association, 2010.

MLA-viite

Fifty Years' Progress of the American Negro in Health and Sanitation. American Public Health Association, 2010.

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