00253nam a2200097Ia 4500080002200000245002400022260004800046300001000094500003200104583001900136  aREF 06.04.05 N277  aGeneral information  bThe UniversityaDelegacion CoyoacanMXc199-  a49 p.  aText in English and Spanish  c3/7/00kM2LMGR