00317nam a2200097Ia 4500008004100000100002200041245003700063245004100100260000900141856006900150160531s9999    xx            000 0 und d  aDar, Imran Ahmad.  aEarth and Environmental Sciences  cby Imran Ahmad Dar, Mithas Ahmad Dar  c2011  uhttp://www.intechopen.com/books/earth-and-environmental-sciences