Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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