Man and the future [papers] James E. Gunn, editor. - Lawrence University Press of Kansas [1968] - x, 305 p. 920504 LCCN: 68014435 //r84 Subjects--Topical Terms: Civilization, Modern--Congresses.--1950- LC Class. No.: CB427 / .I5 1966 Dewey Class. No.: 901.9/4