APA (7th ed.) Citation

(1991). Gastrointestinal endoscopy clinics of North America. Elsevier.

Chicago Style (17th ed.) Citation

Gastrointestinal Endoscopy Clinics of North America. Philadelphia, Pa. [u.a.]: Elsevier, 1991.

MLA (9th ed.) Citation

Gastrointestinal Endoscopy Clinics of North America. Elsevier, 1991.

Warning: These citations may not always be 100% accurate.