APA Style

Semm, K., Friedrich, E, R. (1987). Operative Manual for Endoscopic Abdominal Surgery: Operative Pelviscopy Operative Laparoscopy . Chicago: Year Book Medical Publisher.

MLA Style

Semm, Kurt., Friedrich, Ernst, R.. "Operative Manual for Endoscopic Abdominal Surgery: Operative Pelviscopy Operative Laparoscopy". Chicago: Year Book Medical Publisher, 1987. print.