APA (7th ed.) Citation

United States. Bureau of Foreign and Domestic Commerce, ProQuest (Firm), & United States. Department of Commerce. Bureau of Statistics. (1939). Monthly summary of foreign commerce of the United States April 1939 corrected to May 31, 1939. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Bureau of Foreign and Domestic Commerce, ProQuest (Firm), and United States. Department of Commerce. Bureau of Statistics. Monthly Summary of Foreign Commerce of the United States April 1939 Corrected to May 31, 1939. Washington: [publisher not identified], 1939.

MLA (9th ed.) Citation

United States. Bureau of Foreign and Domestic Commerce, et al. Monthly Summary of Foreign Commerce of the United States April 1939 Corrected to May 31, 1939. [publisher not identified], 1939.