00529nam a2200157   450000100060000000300030000600500170000900800410002603500190006703500180008605000230010424500760012726000150020395201360021899900170035417451UR20220428190548.0061103|||||||||||||||||||||||||||||||| d  a(janium) 17440  a(janium)17440 4aTA805b.M4E96 198710aExperiencias sobre algunos tuneles construidos en la republica mexicana  bSMMSc1987  001040708AGaURBCbURBCd2022-04-28eCompral0oTA805 M4E96 1987 p0035527r2022-04-28 00:00:00w2022-04-28yLIBRO zIngenieria   c45299d45299