APA (7th ed.) Citation

Hodgkin, J. E., & Petty, T. L. (1987). Chronic obstructive pulmonary disease: Current concepts. Saunders.

Chicago Style (17th ed.) Citation

Hodgkin, John E., and Thomas L. Petty. Chronic Obstructive Pulmonary Disease: Current Concepts. Philadelphia: Saunders, 1987.

MLA (9th ed.) Citation

Hodgkin, John E., and Thomas L. Petty. Chronic Obstructive Pulmonary Disease: Current Concepts. Saunders, 1987.