000 00280nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aRuber L.Parson
245 0 _aConserving american resources
260 _bPrentice hall
260 _c1964
365 _b63.18
942 _cBK
999 _c196190
_d196190