000 00282nam a2200085Ia 4500
008 130123s9999 xx 000 0 und d
082 _a581.5
245 _aIndian Journal of Ecology. Vol-27-28 No-1-2
260 _aLudhiana.
_bIndian Ecological Society Punjab Agril. University.
_c2000-2001
999 _c78141
_d78141