Cita APA (7a ed.)

American Physiological Society, editor, & Schultz, S. G. (1990). The gastrointestinal system. Oxford University Press.

Cita Chicago Style (17a ed.)

American Physiological Society, editor, y Stanley G. Schultz. The Gastrointestinal System. Oxford: Oxford University Press, 1990.

Cita MLA (9a ed.)

American Physiological Society, editor, y Stanley G. Schultz. The Gastrointestinal System. Oxford University Press, 1990.