Koch, H. K., & Smith, M. C. (1985). Office-based ambulatory care for patients 75 years old and over: National Ambulatory Medical Care Survey, 1980 and 1981. [U.S. Dept. of Health and Human Services, Public Health Service, National Center for Health Statistics].
Chicago Style (17th ed.) CitationKoch, Hugo K., and Mickey C. Smith. Office-based Ambulatory Care for Patients 75 Years Old and over: National Ambulatory Medical Care Survey, 1980 and 1981. [Hyattsville, Md.]: [U.S. Dept. of Health and Human Services, Public Health Service, National Center for Health Statistics], 1985.
MLA (9th ed.) CitationKoch, Hugo K., and Mickey C. Smith. Office-based Ambulatory Care for Patients 75 Years Old and over: National Ambulatory Medical Care Survey, 1980 and 1981. [U.S. Dept. of Health and Human Services, Public Health Service, National Center for Health Statistics], 1985.