Search Results       Your search for [author]Crosby, Alfred W., Jr. returned 1 record.           The Columbian exchange : biological and cultural consequences of 1492, 1972. by Crosby, Alfred W., Jr.; Westport, Ct: Greenwood Pub. Group, 1972. Subject: Biogeography; Indians - Agriculture; Indians - Diseases; Medical geography.          Add to Book Cart Relevance: 20.09%