Cita APA (7a ed.)

Butler, E. G. (1955). Biological specificity and growth. Princeton Univerity Press.

Cita Chicago Style (17a ed.)

Butler, Elmer G. Biological Specificity and Growth. New Jersey: Princeton Univerity Press, 1955.

Cita MLA (8a ed.)

Butler, Elmer G. Biological Specificity and Growth. Princeton Univerity Press, 1955.