APA

Howard J. M. [. a., . (19). Surgical diseases of the pancreas. Baltimore: Williams & Wilkins.

Chicago

Howard John M [et al.], . 19. Surgical diseases of the pancreas. Baltimore: Williams & Wilkins.

Harvard

Howard J. M. [. a., . (19). Surgical diseases of the pancreas. Baltimore: Williams & Wilkins.

MLA

Howard John M [et al.], . Surgical diseases of the pancreas. Baltimore: Williams & Wilkins. 19.