American exodus : the Dust Bowl migration and Okie culture in California / James N. Gregory. Gregory, James N. Migration, Internal United States History 20th century. Agricultural laborers California Economic conditions. Agricultural laborers California Social conditions. Depressions 1929 United States History. Dust Bowl Era, 1931-1939. 304.8794 GRA Includes bibliographical references and index. New York : Oxford University Press, 1989. 1989. 1989 Text xviii, 338 p. : eng California Population History 20th century. Oklahoma Population History 20th century. United States California California United States