The development challenge of the eighties major policy addresses, 1981-1986 / A.W. Clausen অনুযায়ী Clausen, A. W.

Poverty in the developing countries, 1985 address delivered on January 11, 1985, at the Martin Luther King, Jr. center for Nonviolent Social Change, Inc., Atlanta, Georgia

Population growth and economic and social development addresses অনুযায়ী Clausen, A.W