Cita APA (7th ed.)

Rugh, R. (1951). The Frog: Its reproduction and development. G. M. S. Pub.

Cita Chicago (17th ed.)

Rugh, Roberts. The Frog: Its Reproduction and Development. Quezon City: G. M. S. Pub, 1951.

Cita MLA (9th ed.)

Rugh, Roberts. The Frog: Its Reproduction and Development. G. M. S. Pub, 1951.