000			00586nam a2200169Ia 4500
008			130910s9999 xx 000 0 und d
041			_aeng
082			_221st ed. _a333.72 _bALL/C, 3
100			_aAllen, Shirley Walter
245			_aConserving natural resources : _bprinciples and practice in a democracy _c[by] Shirley Walter Allen and Justin Wilkinson Leonard
250			_a3rd ed.
260			_aNew York : _bMcGraw-Hill , _c1966
300			_avii, 432p.: ill ; _c23cm
653			_aConservation of natural resources-United States
700			_aLeonard, Justin Wilkinson
942			_cEN _2ddc
999			_c14705 _d14705