000 00334nam a2200133 a 4500
005 20210219154603.0
008 030903s2000 mx r 000 0 spa d
035 _aUPN01000128440
049 _aSEP
050 4 _aLC5309 U55
_bH6201-10
100 1 _aRamírez Figueroa, Raymundo
245 1 0 _aHigiene escolar y social
905 _aLibro
999 _c100619
_d100619