000 00477nam a2200181 i 4500
008 950202s1989 sp g spa
020 _a0030707447
080 1 _a54
100 _aMASTERTON. W.L.
245 0 _aQUIMICA GENERAL SUPERIOR
250 _a
260 _aMéxico D.C.
_b:McGraw-Hill
_c,1989
300 _a884
_b:B/N
500 _aR. original :1ºMAR-01,967 / Rex. Dup: 00
650 _aQUIMICA
997 _e2