00259nam a2200109   450000100070000000500170000700800360002410000410006024500220010125000110012326400150013401268020260807101706.0260101s1988    pe      000 0 spa  d1 aUniversidad Peruana Cayetano Heredia10aTesis (1961-1986)  a1a ed. 1aLimac1988