http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f248-subject=Harbors) http://norton.wrhs.org/collections/search?docsPerPage%3D100;f248-subject%3DHarbors Results for your query: docsPerPage=100;f248-subject=Harbors Thu, 01 Jan 1970 12:00:00 GMT Shipping operations and harbor development on the Great Lakes: a panel discussion before the American Association of Port Authorities at its thirty-eighth annual meeting and convention, Milwaukee, Wisconsin, October 12 to 15, 1949. Oettershagen, Martin W., Great Lakes Harbors Association, American Association of Port Authorities http://norton.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc http://norton.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT Ashtabula Harbor, Ohio: a history of the world's greatest iron ore receiving port. Feather, Carl E. http://norton.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc http://norton.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT