00256nam a22000857a 4500020001800000082001600018100008400034245002500118260002700143  a9788125913627  a511.5 IYE/D  aN. Ch. S. N. Iyengar, V. M. Chandrasekaran, K. A. Venkatesh & P. S. Arunachalam  aDiscrete Mathematics  bVikas Publishing House