Cita APA (7th ed.)

Sy, M. C. (1974). Atlas of frog anatomy. Merriam School and Office Supply.

Cita Chicago (17th ed.)

Sy, Manuel C. Atlas of Frog Anatomy. Manila: Merriam School and Office Supply, 1974.

Cita MLA (9th ed.)

Sy, Manuel C. Atlas of Frog Anatomy. Merriam School and Office Supply, 1974.