00331nam a2200121Ia 4500008004100000020001600041040003800057100002000095245003000115250000800145260004100153300001500194211231s9999    xx            000 0 und d  a19 560338 9  cJayakar Knowledge Resource Centre  aThomson, A. J . 0aPractical english grammar  a2nd  bOxford university perssaDelhic1972  axi,275p p.