APA (7th ed.) Citation

Clark, S. L., Cotton, D. B., & Hankins, G. D. V. (1991). Critical care obstetrics (2nd edition.). Blackwell Scientific Publications.

Chicago Style (17th ed.) Citation

Clark, Steven L., David B. Cotton, and Gary D. V. Hankins. Critical Care Obstetrics. 2nd edition. Boston: Blackwell Scientific Publications, 1991.

MLA (8th ed.) Citation

Clark, Steven L., et al. Critical Care Obstetrics. 2nd edition. Blackwell Scientific Publications, 1991.