APA (7th ed.) Citation

Jonasson, O., Peacock, E. E., & Schwartz, S. I. (1991). The year book of surgery 1991. Year Book Medical Publishers.

Chicago Style (17th ed.) Citation

Jonasson, Olga, Erle E. Peacock, and Seymour I. Schwartz. The Year Book of Surgery 1991. Chicago: Year Book Medical Publishers, 1991.

MLA (8th ed.) Citation

Jonasson, Olga, et al. The Year Book of Surgery 1991. Year Book Medical Publishers, 1991.