Population resources environment
Ehrlich, Paul R.
Population resources environment - 2nd ed. - London W.H. Freeman and Company 1972 - xiv, 509p.
0716706954
Environmental
MED. HB871 / E35
Population resources environment - 2nd ed. - London W.H. Freeman and Company 1972 - xiv, 509p.
0716706954
Environmental
MED. HB871 / E35
