00286nam a2200121Ia 4500100001600000250000600016654001800022245003900040260004400079082002100123300000800144546001200152 aShah/Parag  a2 acommunication aPrinciples of communication Engg bStudents book depotaNew delhic1992 a621.382-076bSHA a196 aENGLISH