Ridker Ronald G.
Population, resources, and the environment - Washington U.S. Government Printing Office US 1972 - 377p. - Commission on Population Growth and the American Future research report .
613.1 Us/RID
Population, resources, and the environment - Washington U.S. Government Printing Office US 1972 - 377p. - Commission on Population Growth and the American Future research report .
613.1 Us/RID