APA (7e ed.) Bronvermelding

Harkins, H. N., & Nyhus, L. M. (1969). Surgery of the stomach and duodenum. Little, Brown.

Chicago (17e ed.) Bronvermelding

Harkins, Henry Nelson, en Lloyd M. Nyhus. Surgery of the Stomach and Duodenum. Boston: Little, Brown, 1969.

MLA (9e ed.) Bronvermelding

Harkins, Henry Nelson, en Lloyd M. Nyhus. Surgery of the Stomach and Duodenum. Little, Brown, 1969.