000 00280nam a2200085Ia 4500
008 130123s9999 xx 000 0 und d
082 _a581.5
245 _aIndian Journal of Ecology. Vol-25-26 NO.1-2
260 _aLudhiana.
_bIndian Ecological Society Punjab Agril. University.
_c1998-99
999 _c79830
_d79830