Cita APA (7a ed.)

Romanoff, A. L. (1960). The avian embryo: Structural and functional development. Macmillan.

Cita Chicago Style (17a ed.)

Romanoff, Alexis Lawrence. The Avian Embryo: Structural and Functional Development. New York: Macmillan, 1960.

Cita MLA (9a ed.)

Romanoff, Alexis Lawrence. The Avian Embryo: Structural and Functional Development. Macmillan, 1960.