United States. Department of the Interior. (1920). Tentative course in commercial education and preliminary training for domestic and foreign commerce, with some emphasis upon foreign service for Government. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Department of the Interior. Tentative Course in Commercial Education and Preliminary Training for Domestic and Foreign Commerce, with Some Emphasis upon Foreign Service for Government. [Washington]: [publisher not identified], 1920.
MLA (9th ed.) CitationUnited States. Department of the Interior. Tentative Course in Commercial Education and Preliminary Training for Domestic and Foreign Commerce, with Some Emphasis upon Foreign Service for Government. [publisher not identified], 1920.
Warning: These citations may not always be 100% accurate.