000 00384nam a2200157 4500
001 17157
008 110215s9999 a gr 000 0 spa u
040 0 _aUGC
_cUGC
041 0 _aspa
082 0 4 _a510
_218
245 1 3 _aElementary mathematics
_bPatterns and structure (v3)
250 _a1a ed.
260 _c9999
942 _2ddc
_h510
_cBK
999 _c8151
_d8151
005 20190814131644.0