Cita APA (7th ed.)

Romer, A. S., & Parsons, T. S. (1977). The vertebrate body (5th ed.). Saunders.

Cita Chicago (17th ed.)

Romer, Alfred Sherwood, i Thomas Sturges Parsons. The Vertebrate Body. 5th ed. Philadelphia: Saunders, 1977.

Cita MLA (9th ed.)

Romer, Alfred Sherwood, i Thomas Sturges Parsons. The Vertebrate Body. 5th ed. Saunders, 1977.