000			00423nam a2200145Ia 4500
008			170101s1937 xx 000 0 und d
041			_aEnglish
082			_aP631.43M972S
100			_aR A NORTON
245		0	_aSOIL AND WATER CONSERVATION INVESTIGATIONS
260			_aWASHINGTON _bUNITED STATES DEPARTMENT OF AGRICULTURE _c1937
300			_a182 _ePrint
653			_aVECTOR AND VECTOR-BORNE DISEASES
942			_2ddc _cBK
999			_c773592 _d773592