000 00302nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _a"Singh, A.K. & et.al"
245 0 _aForest resource economy and environment
260 _bConcept Publishers
260 _c1987
365 _b100.00
942 _cBK
999 _c138086
_d138086