00318nam a22001097a 450000500170000000800410001705000200005810000260007824500620010425000080016626000340017420260421141225.0260421b        |||||||| |||| 00| 0 eng d  aGB661.2.G8 1979  aBhagirath , L. Gupta.  awater Resources Engineering and Hydrology/cGupta , B. L.  a1st  aIndia.bNem Chand Jain.c1979