000 00299nam a2200109 i 4500
008 930503s1990 sp g spa
080 1 _a420
100 _aHILL,, L.A.
245 0 _aADVANCED STEPS TO UNDERSTANDING
260 _aTOKYO
_b:GREDOS.
_c,1990
997 _dFalta ISBN
_e1