00414nam a2200169Ia 4500003000400000005001700004008004100021040001100062082001600073100001300089245003000102250001200132260005600144300000800200650002200208700001400230OSt20240308211955.0230106s9999    xx            000 0 und d  cMRSPTU  a621.3bKA-E  aKamala,A 0aEnvironmental engineering  a1st Ed.  aNew DelhibTata McGraw Hill Education Limitedc1988  a431  aCivil Engineering  aKanth Rao