APA (7th ed.) Zitazioa
Sernka, T. (1979). Gastrointestinal physiology: The essentials (1a. ed.). The Williams & Wilkins Company.
Chicago Style (17th ed.) Zitazioa
Sernka, Thomas. Gastrointestinal Physiology: The Essentials. 1a. ed. Batimore: The Williams & Wilkins Company, 1979.
MLA (9th ed.) Zitazioa
Sernka, Thomas. Gastrointestinal Physiology: The Essentials. 1a. ed. The Williams & Wilkins Company, 1979.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.