000 00318nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aMichael (P)
245 0 _aEcological methods for field and laboratory investigations
260 _b"Tata Mcgraw Hile, New Delhi"
260 _c1984
365 _b63
942 _cBK
999 _c214401
_d214401