APA (7th ed.) Citation

Achkar, E., Farmer, R. G., & Fleshler, B. (1992). Clinical gastroenterology (2nd ed.). Lea & Febiger.

Chicago Style (17th ed.) Citation

Achkar, Edgar, R. G. Farmer, and Bertram Fleshler. Clinical Gastroenterology. 2nd ed. Philadelphia, PA: Lea & Febiger, 1992.

MLA (9th ed.) Citation

Achkar, Edgar, et al. Clinical Gastroenterology. 2nd ed. Lea & Febiger, 1992.