Cita APA (7th ed.)

Ward, H. (1927). Charles Darwin and the theory of evolution. New Home Library.

Cita Chicago (17th ed.)

Ward, Henshaw. Charles Darwin and the Theory of Evolution. New York: New Home Library, 1927.

Cita MLA (9th ed.)

Ward, Henshaw. Charles Darwin and the Theory of Evolution. New Home Library, 1927.

Atenció: Aquestes cites poden no estar 100% correctes.