History of the middle ages : textbook for the 6th form / E. V. Agibalova and G. M. Donskoi. Agibalova, E. V. Donskoi, G. M. Middle ages. 940.1 AGH Includes bibliographical references. Moscow : Prosveshcheniye, 1965. 1965. 1965 Text 283 p. : eng engrus