APA (7th ed.) Citation

(1921). General schedule of supplies, fiscal year 1921. [publisher not identified].

Chicago Style (17th ed.) Citation

General Schedule of Supplies, Fiscal Year 1921. Washington, D.C.: [publisher not identified], 1921.

MLA (9th ed.) Citation

General Schedule of Supplies, Fiscal Year 1921. [publisher not identified], 1921.