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001 000088531
003 MX-MxUI
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008 951115t19901990si r 000 0 eng d
020 _a9810200846
035 _a176070
035 _aUIA0088531
040 _aUIASF
_bspa
_cUIASF
_dMX-MxUI
050 4 _aQC 770
_bI64.1990
245 0 0 _aXX International Physics Olympiad :
_bPoland, 16-24 July 1989 /
_ceditor Waldemar Gorzkowski
246 1 1 _aTwentieth International Physics Olympiad :
_bPoland, 16-24 July 1989
260 _aSingapore :
_bWorld Scientific,
_cc1990
300 _al, 102 p. ;
_c22 cm
504 _aIncluye bibliografía.
650 4 _aFísica
_vCongresos
650 4 _aFísica
_xExperimentos
700 1 _aGorzkowski, Waldemar
905 _a01
942 1 _cNEWBFXC1
_2lcc
999 _c87334
_d87334
980 _851
_gRonald RUIZ