Cita APA (7th ed.)
Sanderson, I. R., & Walker, W. A. (2000). Development of the gastrointestinal tract. B.C. Decker.
Cita Chicago (17th ed.)
Sanderson, Ian R., i W. Allan Walker. Development of the Gastrointestinal Tract. Hamilton, Ont. ; St. Louis: B.C. Decker, 2000.
Cita MLA (9th ed.)
Sanderson, Ian R., i W. Allan Walker. Development of the Gastrointestinal Tract. B.C. Decker, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.