00360nam a2200133Ia 450000500170000008000230001710000330004024500310007326000540010430000160015858300170017494200180019199900170020920260716043456.0 aLRC 05.06.02 P6121 aCordera, Carolina...[et al.] aPido la palabra : 4o nivel bUniversidad Nacional Autonoma de MexicoaMXc1991 axvi, 253 p. c12/2/02kM2L cMmP6121kLRC c48050d48050