APA (7th ed.) Citation

United States. Army. Corps of Engineers & ProQuest (Firm). (1950). Commercial Statistics Water-Borne Commerce of the United States for the calendar year 1949. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Army. Corps of Engineers and ProQuest (Firm). Commercial Statistics Water-Borne Commerce of the United States for the Calendar Year 1949. Washington: [publisher not identified], 1950.

MLA (9th ed.) Citation

United States. Army. Corps of Engineers and ProQuest (Firm). Commercial Statistics Water-Borne Commerce of the United States for the Calendar Year 1949. [publisher not identified], 1950.

Warning: These citations may not always be 100% accurate.