000			00353nam a2200145Ia 4500
008			210101s2011 xx 000 0 eng d
020			_a9788176222129
082			_a631.4 G 978 C
100			_aGustafson, A.F.
245		0	_aConservation of the soil
260			_aDelhi _bBiotech Books _c2011
300			_a312
650			_aSoil Science
942			_2ddc _cBK
999			_c502 _d502