The Palimpsest.

MLA international bibliography of books and articles on the modern languages and literatures (Complete edition)Historical abstracts. Part B. Twentieth century abstractsHistorical abstracts. Part A. Modern history abstractsAmerica, history and lifeMode of access: Internet.Issued July 1920-Mar./Apr. 1975 by the State Historical Society of Iowa; May/June 1975-<Nov./Dec. 1976> by the Iowa State Historical Dept., Division of the State Historical Society.Vols. 1-10, 1920-29. 1 v.; Vols. 11-20, 1930-1939. 1 v