Piggott, Stuart. The Druids. - New York Praeger [1968] - 236 p. illus., facsims., maps, plans, ports. 22 cm. - Ancient peoples and places, v. 63 . Bibliography: p. 197-203. LCCN: 68008971 //r872 Subjects--Topical Terms: Druids and Druidism. LC Class. No.: BL910 / .P5 1968 Dewey Class. No.: 299/.1/6