APA

United States, . (2009). Midyear formulary changes in Medicare prescription drug plans. [Washington, D.C.]: Department of Health and Human Services, Office of Inspector General.

Chicago

United States, . 2009. Midyear formulary changes in Medicare prescription drug plans. [Washington, D.C.]: Department of Health and Human Services, Office of Inspector General.

Harvard

United States, . (2009). Midyear formulary changes in Medicare prescription drug plans. [Washington, D.C.]: Department of Health and Human Services, Office of Inspector General.

MLA

United States, . Midyear formulary changes in Medicare prescription drug plans. [Washington, D.C.]: Department of Health and Human Services, Office of Inspector General. 2009.