00573nam a22001937a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001600102110003300118245011600151260003200267300002000299650003000319650003000349CHAP20220329135627.0971013s1963            r     00010     d  a39582  a40554  a44680  cCHAP  a620.142bE8  aE.U.A. Bureau of Reclamation  aEarth manual ; a guide to the use of soils as foundations and as construction materials for hydraulic structure  aDenver, Col. :bB.R.,c1963  a783 p.b: ilus.14aConstrucción de tierra.14aConstrucción de tierra.