Cita APA (7th ed.)
Sernka, T. (1979). Gastrointestinal physiology: The essentials (1a. ed.). The Williams & Wilkins Company.
Cita Chicago (17th ed.)
Sernka, Thomas. Gastrointestinal Physiology: The Essentials. 1a. ed. Batimore: The Williams & Wilkins Company, 1979.
Cita MLA (9th ed.)
Sernka, Thomas. Gastrointestinal Physiology: The Essentials. 1a. ed. The Williams & Wilkins Company, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.