Παραπομπή σε μορφή APA (7η εκδ.)

Gitnick, G. (1987). Handbook of gastrointestinal emergencies (2nd edition.). Medical Examination Publishing Company.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Gitnick, Gary. Handbook of Gastrointestinal Emergencies. 2nd edition. New York, NY: Medical Examination Publishing Company, 1987.

Παραπομπή σε μορφή MLA (8th εκδ.)

Gitnick, Gary. Handbook of Gastrointestinal Emergencies. 2nd edition. Medical Examination Publishing Company, 1987.