Making a model to show how forests prevent erosion
By: [prepared by the Forest Service]
Series: United States. Dept. of Agriculture. Leaflet -- no. 58; Leaflet (United States. Dept. of Agriculture) -- no. 58.
Publisher: U.S. Dept. of Agriculture
Published: 1930
Place of publication: Washington, D.C
Language: eng
Subjects: Models and modelmaking; Soil erosion; Deforestation; Soil conservation
Notes: Cover title.

"Issued April, 1930."