Cita APA (7th ed.)

R. Johnson, L. (1981). Gastrointestinal Physiology (2nd ed.). C. V. Mosby.

Cita Chicago (17th ed.)

R. Johnson, Leonard. Gastrointestinal Physiology. 2nd ed. USA: C. V. Mosby, 1981.

Cita MLA (9th ed.)

R. Johnson, Leonard. Gastrointestinal Physiology. 2nd ed. C. V. Mosby, 1981.

Atenció: Aquestes cites poden no estar 100% correctes.