000 00288 a2200121 4500
080 _a551.49
_bW 262 P
245 1 _aPrinciples of hydrology
_cby R.C. Ward
260 _aLondon
_bMcGraw-Hill Pub.
_c1967
650 _aHydrology
100 1 _aWard, R.C.
_d
300 _a402 p.
901 _a96850
999 _c30075
_d30075