?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Mart%C3%ADnez+Bravo&rft.au=Mart%C3%ADnez+Bravo%2C+Miguel&rft.aufirst=Miguel&rft.date=July+2018&rft.degree=Master+thesis&rft.tpages=270&rft.inst=E.T.S.I.+Caminos%2C+Canales+y+Puertos+(UPM)+%3Chttps%3A%2F%2Foa.upm.es%2Fview%2Finstitution%2FCaminos%2F%3E&rft.title=Mejora+del+abastecimiento+de+agua+de+la+comunidad+rural+de+Playa+Hermosa%2C+cant%C3%B3n+de+Osa%2C+Costa+Rica