The Twentieth Century. by <italic>Caroline F. Ware et al</italic> [History of Mankind. Cultural and Scientific Development, Volume VI. Prepared under the auspices and with financial assistance of the United Nations Educational, Scientific and Cultural Organization.] (New York: Harper and Row for the International Commission for a History of the Scientific and Cultural Development of Mankind. 1966. Pp. liii, 1387. $18.50.)

Abstract

The Twentieth Century. by <italic>Caroline F. Ware et al</italic> [History of Mankind. Cultural and Scientific Development, Volume VI. Prepared under the auspices and with financial assistance of the United Nations Educational, Scientific and Cultural Organization.] (New York: Harper and Row for the International Commission for a History of the Scientific and Cultural Development of Mankind. 1966. Pp. liii, 1387. $18.50.)