APA
Hiram C. Polk J. M., . (1987). The American Journal of Surgery. U.S.A: Cahners Publishing Company.
Chicago
Hiram C. Polk Jr MD, . 1987. The American Journal of Surgery. U.S.A: Cahners Publishing Company.
Harvard
Hiram C. Polk J. M., . (1987). The American Journal of Surgery. U.S.A: Cahners Publishing Company.
MLA
Hiram C. Polk Jr MD, . The American Journal of Surgery. U.S.A: Cahners Publishing Company. 1987.