U.S. life lines
Subtitle: imports of essential materials--1967, 1971, 1975, and the impact of waterborne commerce on the nation
By: prepared by the Special Assistant to the Chief of Naval Operations for Presentations, Office of the Chief of Naval Operations, Department of the Navy.
Edition: [7th ed.].
Publisher: The Office : for sale by the Supt. of Docs, U.S. Govt. Print. Off.
Published: 1978
Place of publication: Washington
Language: eng
Number of pages: 85
Subjects: Raw materials -- United States.; Shipping -- United States.; Imports -- United States.; United States -- Commerce.
Notes: Includes bibliographical references.
"OpNAV-09D-PIA."