Cita APA (7a ed.)

Euler, U. S. v., & Heller, H. (1963). Comparative endocrinology. Academic Press.

Cita Chicago Style (17a ed.)

Euler, Ulf S. von, y Hans Heller. Comparative Endocrinology. New York ; London: Academic Press, 1963.

Cita MLA (9a ed.)

Euler, Ulf S. von, y Hans Heller. Comparative Endocrinology. Academic Press, 1963.