APA

United States, . (1949). Provisions of Internal Revenue Code relating to excise taxes, Mar. 31, 1949. [Washington, D.C.]: .

Chicago

United States, . 1949. Provisions of Internal Revenue Code relating to excise taxes, Mar. 31, 1949. [Washington, D.C.]: .

Harvard

United States, . (1949). Provisions of Internal Revenue Code relating to excise taxes, Mar. 31, 1949. [Washington, D.C.]: .

MLA

United States, . Provisions of Internal Revenue Code relating to excise taxes, Mar. 31, 1949. [Washington, D.C.]: . 1949.