APA (7th ed.) Citation

O'Brien, E., & O'Malley, K., MD. (1981). Essentials of blood pressure measurement. Churchill Livingstone.

Chicago Style (17th ed.) Citation

O'Brien, Eoin, and Kevin O'Malley, MD. Essentials of Blood Pressure Measurement. Edinburgh ; New York: Churchill Livingstone, 1981.

MLA (9th ed.) Citation

O'Brien, Eoin, and Kevin O'Malley, MD. Essentials of Blood Pressure Measurement. Churchill Livingstone, 1981.