The Medical clinics of North America :
gastroenterology : University of Pennsylvania Graduate School of Medicine number.
APA Citation
(1957). The Medical clinics of North America: gastroenterology : University of Pennsylvania Graduate School of Medicine number. Philadelphia and London: Saunders.
MLA Citation
The Medical Clinics of North America: Gastroenterology : University of Pennsylvania Graduate School of Medicine Number. Philadelphia and London: Saunders, 1957.
Warning: These citations may not always be complete (especially for serials).