000 00273 a2200121 4500
080 _a631.711(071.5)
_bP 963
245 1 _aProceedings
260 _bPunjab Agric. University
_c1970
650 _aAgricultural University
100 _a
_d
300 _a274 p.
901 _a108167
999 _c45273
_d45273