00302nam a2200109Ia 4500008004000000082001500040100002000055245004600075260004300121300000800164650002000172210210b1992   xxu||||| |||| 00| 0 eng d  a420.5 VARC  aVARMA (Ravi S).  aCommunication techniques a practice book.  aJaipur.bUniversity Book House.,c1992  a156  aCommunication