APA (7th ed.) Citation

United States. Department of Commerce. (1931). German machine building industry in Sept. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Department of Commerce. German Machine Building Industry in Sept. [Washington]: [publisher not identified], 1931.

MLA (9th ed.) Citation

United States. Department of Commerce. German Machine Building Industry in Sept. [publisher not identified], 1931.

Warning: These citations may not always be 100% accurate.