000 00231nam a2200097 4500
245 _aSoil microlbiology
_cby N,Walker
710 _aWalker,N ed.
260 _aLondon
_bButterworths
_c1975
300 _a262p.; 22cm
082 _a581.5
_bWAL
999 _c7433
_d7433