2004 - Erikson Eskimos and Columbus Medieval European Knowledge of America (Paperback) → Hardcover ISBN-13: 9780801878954 ISBN-10: 0801878950 Genres: History, Science & Math, Engineering & Transportation ? 2002 - Erikson Eskimos and Columbus Medieval European Knowledge of America (Hardcover) → Paperback ISBN-13: 9780801866609 ISBN-10: 080186660X Genres: History, Science & Math, Engineering & Transportation ? 1972 - Viking America the Norse Crossings and Their Legacy (Hardcover) ISBN-13: 9780385025850 ISBN-10: 0385025858 Genre: History ? |