U.S. life lines
Subtitle: imports of essential materials, 1966, 1967, 1968, 1969, and the impact of waterborne commerce on American industrial productivity.
Edition: Rev. Prepared by the Special Studies and Presentations Group (Op-09D) in association with the Logistic Plans Division (OP-40), Office of the Chief of Naval Operations, Dept. of the Navy.
Published: 1972
Place of publication: Washington
Language: eng
Number of pages: 84
Subjects: Raw materials -- United States.; Shipping -- United States.; Imports -- United States.; United States -- Commerce.
Notes: Includes bibliographical references.
"OpNav-09D-P1."