Heyerdahl, Thor. <br/><br/>
The Ra expeditions / 
Thor Heyerdahl ; translated by Patricia Crampton. 
 - London :  George Allen & Unwin,  1971. 
 - 334 p. :  col. ports. ;  24 cm. 
<br/><br/><label>ISBN: </label>0045720207 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Voyages and travels.