APA

United States, .List of original issue discount obligations. [Washington, D.C.]: Dept. of the Treasury, Internal Revenue Service.

Chicago

United States, .List of original issue discount obligations. [Washington, D.C.]: Dept. of the Treasury, Internal Revenue Service.

Harvard

United States, .List of original issue discount obligations. [Washington, D.C.]: Dept. of the Treasury, Internal Revenue Service.

MLA

United States, .[Washington, D.C.]: Dept. of the Treasury, Internal Revenue Service. .