000 00440 a2200253 4500
001 146542
020 _a2
041 _aeng
080 _a539.12 Leo
245 _aParticle Physics:An introduction.
250 _a
260 _a
260 _bAP, New York,
260 _c1973
300 _ap.xii,268,
300 _c
490 _a
100 _aLeon, M.\
700 _a
650 _a
650 _a
942 _cBK
942 _2UDC
999 _c106849
_d106849