000 00448nam a2200169 i 4500
008 960818s1991 sp g spa
020 _a8486688531
100 _aAENOR
245 0 _aCDU. CLASIFICACION DECIMAL UNIVERSAL
250 _a6
260 _aMADRID
_b:AENOR N.A.
_c,1991
300 _a462
_c;29cm
500 _aR. original :1ºMAR-00,566 / Rex. Dup: 00
650 _aGUIAS
997 _e2