Παραπομπή APA

(1963). Waterborne commerce of the United States: Calendar year 1963. Michigan: Department of the Army Corps of Engineers.

Παραπομπή Chicago Style

Waterborne Commerce of the United States: Calendar Year 1963. Michigan: Department of the Army Corps of Engineers, 1963.

Παραπομπή MLA

Waterborne Commerce of the United States: Calendar Year 1963. Michigan: Department of the Army Corps of Engineers, 1963.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.