?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Gonz%C3%A1lez+Carballo%2C+Juan+Carlos&rft.aulast=Gonz%C3%A1lez+Carballo&rft.aufirst=Juan+Carlos&rft.tpages=93&rft.inst=Universidad+Nacional+Polit%C3%A9cnica.&rft.degree=%5B%22eprint_fieldopt_thesis_type_bachelor%22+not+defined%5D&rft.title=Organizadora+Profesional+de+Eventos+y+Congresos%3A+Opec-Eve+%26+Con.&rft.date=November+2017