000 00408nam a2200121Ia 45e0
008 181001s1971 xx 000 0 und d
100 _aRadhey Lal
245 0 _aAgricultural engg. through worked exm.
260 _aDelhi
_bSaroj Pr. Delhi
_c1971
300 _a794
942 _2ddc
_cBK
999 _c973
_d973