Cita APA (7th ed.)

Gitnick, G. L. (1991). Inflammatory bowel disease: Diagnosis and treatment. Igaku-Shoin.

Cita Chicago (17th ed.)

Gitnick, Gary L. Inflammatory Bowel Disease: Diagnosis and Treatment. New York: Igaku-Shoin, 1991.

Cita MLA (9th ed.)

Gitnick, Gary L. Inflammatory Bowel Disease: Diagnosis and Treatment. Igaku-Shoin, 1991.