000 00284nam a22001217a 4500
020 _a9788176222129
082 _a631.45
_bGUS/CO
100 _aGustafson, A.F
_9943
245 _aConservation of the soil
260 _aDelhi
_bBiotech Books
_c2011
300 _axvii+312 p
942 _cBK
999 _c340991
_d340991