00317nam a2200109 a 450000500170000000800410001704100080005810000180006624500650008426400440014930000140019320260717100943.0260717s1995    ii            000 0 eng d  aeng1 aMishra, P. C.10aAdvances in Ecology and Environmental Sciences /cMishra P.C 1aNew Delhi :bAshish Publication,c1995.  axxiii,651