00414nam a22001457a 4500008004100000020001400041050002000055100002700075245003800102250001200140260003300152300002900185500004100214650001300255170204b        xxu||||| |||| 00| 0 eng d  a020146697  aQC 23 .H49 1997  aHewitt, Paul G.d1997.  aConceptual Physcs/cPaul, Hewitt.  a3rd ed.  aUSA:bAddison-Wesley,c1997.  axi,703p. :bill. ;c24cm  aIncludes bibliographical references.  aPhysics.