(U.S.), N. I. o. H., & National Heart, L. (1981). Chronic obstructive pulmonary disease. U.S. Dept. of Health and Human Services, Public Health Service, National Institutes of Health.
Chicago Style (17th ed.) Citation(U.S.), National Institutes of Health, and Lung National Heart. Chronic Obstructive Pulmonary Disease. U.S. Dept. of Health and Human Services, Public Health Service, National Institutes of Health, 1981.
MLA (8th ed.) Citation(U.S.), National Institutes of Health, and Lung National Heart. Chronic Obstructive Pulmonary Disease. U.S. Dept. of Health and Human Services, Public Health Service, National Institutes of Health, 1981.
Warning: These citations may not always be 100% accurate.