Heyerdahl, Thor The Ra expeditions / Th. Heyerdahl ; Translated by Patricia Crampton. - New York : Doubleday & Co., Inc., ©1971. - xi, 341 p. : [64] p. of col. plates : ill. ; 24 cm. - 910.4(26) (NLA) . Subjects--Corporate Names: Ra (Boat) Subjects--Topical Terms: Voyages and travels Universal Decimal Class. No.: 910.4(26) (NLA)