000			00404nam a2200145Ia 4500
008			211109s9999||||xx |||||||||||||| ||und||
082			_a631.4 _bGUS-C
100			_aGustafson, A F
245		0	_aConservation of the Soil
260			_bMc Graw-Hill Book Company _aNew York _c1937
300			_a312p.
630			_xGeneral Stack
650			_aTechniques, equipment & materials _vSoil _xBotany
942			_cBOOK
999			_c12299 _d12299