Human environment and world order / U Thant.

Secretary-General of the United Nations gives keynote address for the Internation ex-students’ conference; he identifies the major social and ecological problems confronting humankind.|HUMAN ENVIRONMENT AND WORLD ORDER / U Thant. – Secretary-General of the United Nations gives keynote address for the International ex-students’ conference. He identifies the major social and ecological problems confronting humankind. –…