Greenblatt, Miriam Human heritage : world history / Miriam Greenblatt, F. Kenneth Cox, Stanley S. Seaberg. - Teacher’s annotated ed. - Columbus, Ohio : Charles E. Merrill Publishing Co., 1981. - 66 p. : ill ; 24 cm. ISBN: 0-675-02890-6 Subjects--Topical Terms: Civillization--History