00335nam a2200133Ia 4500008004100000100002300041245005000064250000600114260001400120260002800134260000900162300000800171650002200179221231s9999    xx            000 0 und d  aHassan syed danish 0aCivil engineering materials and their testing  a2  aNew Delhi  bNarosa Publishing House  c2009  a124  acivil, Mechanical