000 004320000a22001570004500
008 140223b1959 xxu||||| |||| 00| 0 eng d
041 _aeng
080 _aX:271 J9
082 _aX:271 J9
100 _aAllen Shirley Walter
245 _aConserving natural resources: Principles and practice in a democracy
250 _a2nd Edn
260 _aNew York
_bMcGraw Hill
_c1959
650 _aEconomics
650 _aNatural Resources
999 _c238542
_d238542