Summary of foreign trade of the United States, calendar year 1939,
by Grace A. Witherow.

APA Citation

Witherow, G. A., United States. Bureau of Foreign and Domestic Commerce. (1940). Summary of foreign trade of the United States, calendar year 1939. Washington: U.S. Govt. Print. Off..

MLA Citation

Witherow, Grace A, and United States. Bureau of Foreign and Domestic Commerce. Summary of Foreign Trade of the United States, Calendar Year 1939. Washington: U.S. Govt. Print. Off., 1940.