000 00271nam a22001097a 4500
999 _c2892
_d2892
008 190404e1997 mx ||||| |||| 00| 0 spa d
100 1 _aBehrman, Richard
245 1 _aNelson. Tratado de pediatria
250 _815a ed.
260 _aMexico
_bMcGraw Hill
_c1997
500 _3Baja