United States. Department of Commerce. Bureau of Statistics & ProQuest (Firm). (1938). Monthly summary of foreign commerce of the United States April 1938 corrected to May 31, 1938. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Department of Commerce. Bureau of Statistics and ProQuest (Firm). Monthly Summary of Foreign Commerce of the United States April 1938 Corrected to May 31, 1938. Washington: [publisher not identified], 1938.
MLA (9th ed.) CitationUnited States. Department of Commerce. Bureau of Statistics and ProQuest (Firm). Monthly Summary of Foreign Commerce of the United States April 1938 Corrected to May 31, 1938. [publisher not identified], 1938.
Warning: These citations may not always be 100% accurate.