000 00351nam a2200121 i 4500
008 991123s1993 sp g spa
100 _aFRANK, CHRISTINE
245 0 _aCHALLENGE TO THINK
_c/ FRANK, CHRISTINE
260 _b:OXFORD UNIVERSITY PRESS
_c,1993
300 _a80
_b:SI
650 _aINGLES (S)
997 _dFalta ISBN
_e1