000 00290nam a2200121Ia 4500
005 20260205051751.0
008 260111s9999||||xx |||||||||||||| ||und||
100 _aAmrik Singh
245 0 _aGreen revolution: A symposium
260 _aDelhi
_bHarman
_c1990
300 _a175p.
942 _cBK
999 _c102313
_d102313