APA

Kirchhoff S. M., Library of Congress, . (2018). Medicare Part D Prescription Drug Benefit. [Washington, D.C.]: Congressional Research Service.

Chicago

Kirchhoff Suzanne M, Library of Congress, . 2018. Medicare Part D Prescription Drug Benefit. [Washington, D.C.]: Congressional Research Service.

Harvard

Kirchhoff S. M., Library of Congress, . (2018). Medicare Part D Prescription Drug Benefit. [Washington, D.C.]: Congressional Research Service.

MLA

Kirchhoff Suzanne M, Library of Congress, . Medicare Part D Prescription Drug Benefit. [Washington, D.C.]: Congressional Research Service. 2018.