APA (7th ed.) Citation

United States. Federal Supply Service. (1919). General schedule of supplies for fiscal year 1920, 3rd supplement to class 1: Paper, for period from Jan. 1, 1920 to June 30, 1920, both inclusive. GPO.

Chicago Style (17th ed.) Citation

United States. Federal Supply Service. General Schedule of Supplies for Fiscal Year 1920, 3rd Supplement to Class 1: Paper, for Period from Jan. 1, 1920 to June 30, 1920, Both Inclusive. [Washington]: GPO, 1919.

MLA (9th ed.) Citation

United States. Federal Supply Service. General Schedule of Supplies for Fiscal Year 1920, 3rd Supplement to Class 1: Paper, for Period from Jan. 1, 1920 to June 30, 1920, Both Inclusive. GPO, 1919.