000 00239nam a22000857a 4500
008 210304b ||||| |||| 00| 0 eng d
050 _aQC21.2
245 _aPhysics : Part Two
_cHALLIDAY, DAVID
942 _2lcc
_hQC21.2 .H35 1962
999 _c1520
_d1520