00356 a2200109 4500020001500000082001700015100001700032245006800049260005100117300003300168650004500201 a8185589445 a333.9104 GHA aGhosh, N. C. aGroundwater Modelling and ManagementcN. C. Ghosh, K. D. Sharma aNew Delhi :bCapital Publishing Company,c2006 axi, 594p. :bill ., ;c24 cm aGround water flow -- Mathematical Models