Symposium on permeability of soils, presented at the fifty seventh annual meeting, american society for testin materials, chicago, iii., june 15, 1954. 

 - 136 páginas 
 - Its special technical publication ;  no. 163 .
<br/><br/> "under the sponsorship of subcommittee r-4 on physical propeties." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Suelos--Pruebas<br/>Percolación de suelos
<br/><br/><label>LC Class. No.: </label>TA710  / A471954