Water and its conduction in soils ; an International symposium - Washington : NAS-NRC, 1958 - 338 p. : ilus. - Highway Research Board. Special report ; 40 . - Highway Research Board. Special report ; 40 . LCCN: 30561 Subjects--Topical Terms: Suelos--FĂsica de.Suelos--Humedad. Dewey Class. No.: 631.43 / N38