00286nam a2200109Ia 4500008004100000020001800041041000800059082001300067100001500080245002100095260006000116230717s9999    xx            000 0 und d  a81-203-1190-6  aeng  a160bKEL  aKelly J. J  aEssence Of Logic  aNew DelhibPrentice-hall Of India Private Limitedc1997