00354nam a2200121 a 450000500170000000800410001702000150005804100080007310000170008124500860009826400370018430000110022120260717072138.0260701s1983    ii            000 0 eng d  a0632009527  aeng1 aLynch, J. M.10aSoil biotechnology : microbiological factors in crop productivity /cLynch, J. M. 1aLondon :bELBS Blackwell,c1983.  a191 p.