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040 _aSIIS
_bspa
041 _aeng
100 1 _aECKERMAN, C.O.
245 1 0 _aLESSONS DRAWN FROM OBSERVING YOUNG PEERS TOGETHER
650 1 4 _aCompaƱeros
650 1 4 _aInfancia
650 1 4 _aSocialización
653 1 0 _aMenores
655 4 _aDocumental
700 1 _aDIDOW, S.M.
773 0 _tACTA PAEDIATRICA SCANDINAVICA
_gVol. 77, no. 344 (1988), p. 55-70
996 1 0 _a16
996 1 0 _aG2a
997 _a11858
998 _aAR
939 _a19900115
999 _c11731
_d11731