Marine approaches to U.S. ports
Subtitle: a flexible and obstruction-free system is needed : report to the Congress
By: by the Comptroller General of the United States.
Publisher: General Accounting Office
Published: 1978
Place of publication: [Washington]
Language: eng
Number of pages: 11
Subjects: Trade routes.; Oil well drilling, Submarine.; Coastwise navigation.
Notes: "CED-78-107."

"B-118678."

Stamped on cover: May 2, 1978.