Unfinished journey : a world history / Marvin Perry ; contributing area specialists, Daniel F. Davis ... [et al. ; editorial adviser, Howard D. Mehlinger]. Perry, Marvin. Davis, Daniel F., joint author. World history. D21 .P457 1980 909 PEU Edition of 1974 published under title: Man's unfinished journey. Includes index. Bibliography: p. 745-746. A history textbook chronicling the rise of civilization 5000 years ago through the challenges and problems of the modern age. Boston : Houghton Mifflin, c1980. c1980. 1980 Text 768 p. : eng