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Report of the Royal Commission on Coasting Trade : December 9, 1957
(1958)
Regulation and policies of American shipping
Frankel, Ernst G., (1982)
Evaluation of maritime industry energy consumption profiles : Prep. by Metrics, Inc. Atlanta/Ga., G. William Spann [u.a.] U.S. Dep. of Commerce, Maritime Administration
Spann, G. William, (1978)