APA (7th ed.) Citation

Witherow, G. A. (1932). Foreign trade of the United States in the calendar year 1931. United States. Bureau of Foreign & Domestic Commerce. Trade Information Bulletin, 808, 1.

Chicago Style (17th ed.) Citation

Witherow, G. A. "Foreign Trade of the United States in the Calendar Year 1931." United States. Bureau of Foreign & Domestic Commerce. Trade Information Bulletin 808 (1932): 1.

MLA (9th ed.) Citation

Witherow, G. A. "Foreign Trade of the United States in the Calendar Year 1931." United States. Bureau of Foreign & Domestic Commerce. Trade Information Bulletin, vol. 808, 1932, p. 1.