Caldwell, Bill. Lighthouses of Maine / Bill Caldwell. - 1st ed. - Portland, Me. : Gannett Books, c1986. - 276 p., [1] leaf of plates : ill. ; 23 cm. ISBN: 0930096630 (pbk.) LCCN: 85080240 Subjects--Topical Terms: Lighthouses--History.--Maine LC Class. No.: VK1024.M2 / C35 1986 Dewey Class. No.: 387.1/55