Stefoff, Rebecca. The viking explorers / Rebecca Stefoff. - America : Chelsea House Publishers, 1993. - 111 p ; ill. ; 24 cm. - World explorers . Include index 330 330 ISBN: 0-7910-1295-6 0-7910-1520-3 Subjects--Topical Terms: Northern Europe ; Scandinavia Dewey Class. No.: 948.022 / S32v