Population, environment, and people - National Congress on Optimum Population and Environment, 1st, Chicago, 1970.; Hinrichs, Noel u.; Council on Population and Environment (New York: McGraw-Hill, 1971)
Selected papers of the first National Congress on Optimum Population and Environment, held June, 1970, in Chicago.
Keywords: Population -- Congresses; Environmental policy -- United States -- Congresses; United States -- Population -- Congresses