Stone, I., & Stone, J. (1980). The origin: A biographical novel of Charles Darwin. Doubleday & Company.
Cita Chicago Style (17a ed.)Stone, Irving, y Jean Stone. The Origin: A Biographical Novel of Charles Darwin. Garden City, New York: Doubleday & Company, 1980.
Cita MLA (9a ed.)Stone, Irving, y Jean Stone. The Origin: A Biographical Novel of Charles Darwin. Doubleday & Company, 1980.
Precaución: Estas citas no son 100% exactas.