00313nam a2200121 a 450000500170000002000150001708200150003210000180004724500400006525000120010526000470011730000270016420251203110741.0  a0122265513  a511.8bDYM  aDym, Clive L.  aPrinciples of Mathematical Modeling  a2nd ed.  aNew DelhibElsevier India Pvt. Ltd.,c2006  axviii,303p.c26 cm. PB