APA (7th ed.) Citation

United States. Bureau of Foreign and Domestic Commerce. (1932). Industrial machinery letter. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Bureau of Foreign and Domestic Commerce. Industrial Machinery Letter. Washington, D.C.: [publisher not identified], 1932.

MLA (9th ed.) Citation

United States. Bureau of Foreign and Domestic Commerce. Industrial Machinery Letter. [publisher not identified], 1932.