00342nam a2200145Ia 45000010006000000050017000060080041000230410008000640820017000721000034000892450026001233000031001496500008001806540008001881329620260306164750.0260306t9999||||xx |||||||||||||| ||spa||  aESP  a001.42bM26T  aMaraví Zegarra, RonaldeAUT 0aLa tesis univesitaria  avi, 37 páginas :c20 cm.  aGEN  aCHU