00426nam a2200145Ia 4500003000400000005001700004008004100021040000900062082001700071100002600088245002600114260004500140630002800185650006700213OSt20220822053427.0211109s9999||||xx |||||||||||||| ||und||  cSBCL  a809.2bMCG-E  aMcGraw Hill Company,  0aENCYCLOPEADIA  VOL- 2  bMcgraw-Hill Book CompanyaNew Yorkc1972  xPost Graduate Reference  aliteraturevhistory ,description and criticismxenglishPhysics