APA (7th ed.) Citation

(1994). Upper gastrointestinal endoscopy. Saunders.

Chicago Style (17th ed.) Citation

Upper Gastrointestinal Endoscopy. Philadelphia u.a: Saunders, 1994.

MLA (9th ed.) Citation

Upper Gastrointestinal Endoscopy. Saunders, 1994.

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