Sand trap devices for irrigation channels, 1944 / by R.L. Parshall.
Related Entities
There are 2 Entities related to this resource.
Soil and Water Conservation Meeting (1944 : Pasadena, Calif.)
http://n2t.net/ark:/99166/w6482fdb (corporateBody)
Parshall, R. L. (Ralph Leroy), 1881-
http://n2t.net/ark:/99166/w6h14g4x (person)