Cita APA (7th ed.)

Rugh, R. (1952). The frog; its reproduction and development. Blakiston.

Cita Chicago (17th ed.)

Rugh, Roberts. The Frog; Its Reproduction and Development. Philadelphia: Blakiston, 1952.

Cita MLA (9th ed.)

Rugh, Roberts. The Frog; Its Reproduction and Development. Blakiston, 1952.