Thant, Portfolio for peace / excerpts from the writings and speeches of U Thant, Secretary-General of the United Nations, on major world issues 1961-1968. - New York : United Nations, 1968. - 109 p. ; At head of title: Office of Public Information. ISBN: SSC2429 Subjects--Topical Terms: Arbitration, International Dewey Class. No.: 341.13 / Po