000			00340nam a2200133Ia 4500
008			151015s9999 xx 000 0 und d
020			_a9251034060
100			_aHudson, N. W.
245			_aField measurement of soil erosion and runoff
260			_c1993
300			_axiv 139p.
500			_aFAO soils bulletin no- 68
942			_cFAO _2udc
999			_c23904 _d23904