000			00384nam a22001577a 4500
020			_a0716706954
050			_aMED. HB871 _bE35
100			_aEhrlich, Paul R.
245			_aPopulation resources environment
250			_a2nd ed.
260			_aLondon _bW.H. Freeman and Company _c1972
300			_axiv, 509p.
650			_aEnvironmental
700			_aEhrlich, Anne H.
942			_cBK
999			_c12409 _d12409