000			004120000a22001570004500
245			_aMathematical models in hydrology
100			_aClarke, R.T.
260			_aRome _bFAO _c1973
300			_ax, 282p. : ill.
440			_aFAO irrigation and drainage paper ; no. 19
020			_a9251006415
080			_a626.01.001.57 _bC6
650			_aHYDROLOGY - Mathematical Models
041			_aEN
942			_cBK _01
999			_c85169 _d85169