APA

United States, United States, . (1939). Codification of Internal Revenue Laws: published pursuant to Section 1203(c), Revenue Act of 1926. Washington: U.S. Government Printing Office.

Chicago

United States, United States, . 1939. Codification of Internal Revenue Laws: published pursuant to Section 1203(c), Revenue Act of 1926. Washington: U.S. Government Printing Office.

Harvard

United States, United States, . (1939). Codification of Internal Revenue Laws: published pursuant to Section 1203(c), Revenue Act of 1926. Washington: U.S. Government Printing Office.

MLA

United States, United States, . Codification of Internal Revenue Laws: published pursuant to Section 1203(c), Revenue Act of 1926. Washington: U.S. Government Printing Office. 1939.