What U.S. ports mean to the economy /
[written by Jerome Gilbert, project leader, Nai-Ching Sun, Amos Ilan ; consulting editor, Walter Hamshar].

APA Citation

United States. Maritime Administration., Gilbert, J. (1978). What U.S. ports mean to the economy. [Washington]: U.S. Dept. of Commerce, Maritime Administration .

MLA Citation

United States. Maritime Administration, and Jerome Gilbert. What U.S. Ports Mean to the Economy. [Washington]: U.S. Dept. of Commerce, Maritime Administration , 1978.

Warning: These citations may not always be complete (especially for serials).