Παραπομπή APA

Morton Grossman & V Speranza. (1977). Gastrointenstinal Hormones and Pathology of the Digestive System. New york.

Παραπομπή Chicago Style

Morton Grossman και V Speranza. Gastrointenstinal Hormones and Pathology of the Digestive System. New york, 1977.

Παραπομπή MLA

Morton Grossman και V Speranza. Gastrointenstinal Hormones and Pathology of the Digestive System. New york, 1977.