U. S. life lines
Subtitle: imports of essential materials-1967, 1971, 1975 and the impact of waterborne commerce on the nation
Series: OpNav ; 09D-PIA
Publisher: Departmentof Defense], Department of the Navy, Office of the Chief of Naval Operations, Special Assistant to the Chief of Naval Operations for Presentations : for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1978
Place of publication: Washington
Language: eng
Subjects: Strategic materials; Commerce; Shipping
Notes: January 1978.