APA Citation

Sergi, G. 1. (1894). <<The>> varieties of the human species. Washington.

Chicago Style Citation

Sergi, Giuseppe 1841-1936. <<The>> Varieties of the Human Species. Washington, 1894.

MLA Citation

Sergi, Giuseppe 1841-1936. <<The>> Varieties of the Human Species. Washington, 1894.

Warning: These citations may not always be 100% accurate.