Cita APA (7a ed.)

Sears, P. B. (1950). Charles Darwin: The naturalist as a cultural force. Charles Scribner's Sons.

Cita Chicago Style (17a ed.)

Sears, Paul B. Charles Darwin: The Naturalist as a Cultural Force. New York : London: Charles Scribner's Sons, 1950.

Cita MLA (9a ed.)

Sears, Paul B. Charles Darwin: The Naturalist as a Cultural Force. Charles Scribner's Sons, 1950.