000 00404nam a2200145Ia 4500
008 130223s9999 xx 000 0 und d
245 _aScotch pine stand stagnation and recuperation
260 _aPennsylvania
260 _bPennsylvania Agricultural Experiment Station
260 _c1969
300 _a0.833333333
440 _aNo. 299; Pennsylvania Agricult
901 _pS17274
942 _cB
_2udc
999 _c132883
_d132883