000 00272nam a22001217a 4500
008 240412b |||||||| |||| 00| 0 eng d
020 _a9780007267491
082 _a530 DOB
100 _aDobson, Ken
245 _aPhysics
250 _a3rd
260 _aLondon
_bCollins
_c2008
999 _c25378
_d25114