Romer, A. S. (1970). The vertebrate body (4th ed.). Saunders.
Cita Chicago (17th ed.)Romer, Alfred Sherwood. The Vertebrate Body. 4th ed. Philadelphia: Saunders, 1970.
Cita MLA (9th ed.)Romer, Alfred Sherwood. The Vertebrate Body. 4th ed. Saunders, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.