APA

United States, United States, . (2019). Taxpayer roadmap 2019: an illustration of the modern United States tax system. [Washington, D.C.]: Department of the Treasury, Internal Revenue Service.

Chicago

United States, United States, . 2019. Taxpayer roadmap 2019: an illustration of the modern United States tax system. [Washington, D.C.]: Department of the Treasury, Internal Revenue Service.

Harvard

United States, United States, . (2019). Taxpayer roadmap 2019: an illustration of the modern United States tax system. [Washington, D.C.]: Department of the Treasury, Internal Revenue Service.

MLA

United States, United States, . Taxpayer roadmap 2019: an illustration of the modern United States tax system. [Washington, D.C.]: Department of the Treasury, Internal Revenue Service. 2019.