APA (7th ed.) Citation

United States. Federal Supply Service. (1920). General schedule of supplies for fiscal year 1921, 1st supplement to class 1: Paper and paper articles, for period beginning Aug. 2, 1920, and ending June 30, 1921, unless otherwise stated. GPO.

Chicago Style (17th ed.) Citation

United States. Federal Supply Service. General Schedule of Supplies for Fiscal Year 1921, 1st Supplement to Class 1: Paper and Paper Articles, for Period Beginning Aug. 2, 1920, and Ending June 30, 1921, Unless Otherwise Stated. [Washington]: GPO, 1920.

MLA (9th ed.) Citation

United States. Federal Supply Service. General Schedule of Supplies for Fiscal Year 1921, 1st Supplement to Class 1: Paper and Paper Articles, for Period Beginning Aug. 2, 1920, and Ending June 30, 1921, Unless Otherwise Stated. GPO, 1920.