00263nam a22000977a 450000500170000000800410001702000150005804000080007324500540008126000300013520200907113748.0200907b           ||||| |||| 00| 0 eng d  a0719536618  cCML  aQuestions on Principles of Physics.cWhelan, P.M.  aLondonbJohn Murrayc1974