00245nam a2200109Ia 4500008004100000082001500041100001700056245001400073250001900087260002100106300000800127240913s9999||||xx |||||||||||||| ||und||  a530  UPA/M  aJC Upadhyaya 0aMechanics  a6th revised ed  bNULLaNULLc2004  a847