00256nam a22000857a 4500999001900000100003300019245008000052260002800132300001000160  c515447d515447  aShreevastav, K. N. P.921020  aBasic of disaster management: bPre- During- Post cby K. N. P. Shreevastav  aNew DelhibSatyamc2010  a468p.