Know Your Ships 2019: Field Guide to Boats & Boatwatching, Great Lakes & St. Lawrence SeawayThe 60th anniversary edition of this annual volume offers the lowdown on nearly 1,000 U. S., Canadian and international flag vessels that sail the inland seas, including owner and port of registry, vital statistics and former names. The book also includes plenty of photographs of vessels present and past, handy information for boatwatchers, and seven pages of colorful stack markings flags of Great Lakes & Seaway fleets., ISBN13: 9781891849244 ISBN10: