APA

United States, . (1993). The National Medical Expenditure Survey. [Washington, D.C.]: Department of Health and Human Services, Office of Inspector General.

Chicago

United States, . 1993. The National Medical Expenditure Survey. [Washington, D.C.]: Department of Health and Human Services, Office of Inspector General.

Harvard

United States, . (1993). The National Medical Expenditure Survey. [Washington, D.C.]: Department of Health and Human Services, Office of Inspector General.

MLA

United States, . The National Medical Expenditure Survey. [Washington, D.C.]: Department of Health and Human Services, Office of Inspector General. 1993.