?url_ver=Z39.88-2004&rft_id=10.20868%2FUPM.book.62714&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aulast=Herrera+Herbert&rft.au=Herrera+Herbert%2C+Juan&rft.aufirst=Juan&rft.tpages=97&rft.btitle=Ingenier%C3%ADa+de+la+perforaci%C3%B3n+de+pozos+de+petr%C3%B3leo+y+gas.+Vol.+I%3A+Origen+y+caracter%C3%ADsticas+de+los+hidrocarburos.&rft.date=2020&rft.genre=book