00405nam a2200157 a 4500008004100000020001500041050001600056100002000072245003800092250001200130260002900142300002300171350000900194650001200203650003200215120416s1993    ||||||||||||||||| ||    u  a0435686682  aQC 21.2 Nel  aNelkon, Michael10aAdvanced level physics. (6th ed.)  a6th ed.  aLondon:bHeinemannc1993  axiii, 942p. : ill.  a0.00 0aPHYSICS  aPHYSICS--STUDY AND TEACHING