000 00303nam a2200097Ia 4500
008 160215s9999 xx 000 0 und d
245 _aBiennial report : energy requirements in agricultural sectore 1981-83
260 _bPunjab Agricultural University
_aLudhiana
_c1983
300 _a206p.
942 _2udc
_cPR
999 _c31098
_d31098