00345nam a2200121 a 450000500170000002000150001708200150003210000060004711000360005324500510008926000560014030000270019620251203110548.0  a8176296147  a070.5bEPU  d_  aSingh, P.P. and Sharma, Sandhir  aE-PublishingbConcept and Practical Approaches  aNew DelhibDeep & Deep Publications Pvt. Ltd.c2004  aviii, 269p.c24 cm. HB