Cita APA (7a ed.)

Weiss, P. A. (1969). Principles of development: A text in experimental embryology. Hafner Publishing.

Cita Chicago Style (17a ed.)

Weiss, Paul A. Principles of Development: A Text in Experimental Embryology. New York: Hafner Publishing, 1969.

Cita MLA (9a ed.)

Weiss, Paul A. Principles of Development: A Text in Experimental Embryology. Hafner Publishing, 1969.