APA

Davis P. A., Voorhies P. & Library of Congress. (2019). Medicare overview. [Washington, D.C.]: Congressional Research Service.

Chicago

Davis Patricia A, Voorhies Phoenix and Library of Congress. 2019. Medicare overview. [Washington, D.C.]: Congressional Research Service.

Harvard

Davis P. A., Voorhies P. and Library of Congress. (2019). Medicare overview. [Washington, D.C.]: Congressional Research Service.

MLA

Davis Patricia A, Voorhies Phoenix and Library of Congress. Medicare overview. [Washington, D.C.]: Congressional Research Service. 2019.