Ritter, A. H. (1925). Transportation economics of the Great lakes-St. Lawrence ship channel. Great lakes-St. Lawrence tidewater association.
Chicago Style (17th ed.) CitationRitter, Alfred Hotchkiss. Transportation Economics of the Great Lakes-St. Lawrence Ship Channel. Washington, D. C: Great lakes-St. Lawrence tidewater association, 1925.
MLA (9th ed.) CitationRitter, Alfred Hotchkiss. Transportation Economics of the Great Lakes-St. Lawrence Ship Channel. Great lakes-St. Lawrence tidewater association, 1925.
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