Cita APA (7a ed.)

Sheppard, P. (1975). Natural selection and heredity (1st edition.). Hutchinson.

Cita Chicago Style (17a ed.)

Sheppard, P.M. Natural Selection and Heredity. 1st edition. London: Hutchinson, 1975.

Cita MLA (8a ed.)

Sheppard, P.M. Natural Selection and Heredity. 1st edition. Hutchinson, 1975.