An Area Plan for Land Use, Clatsop County, Oregon United States. Bureau of Agricultural Economics Published: 1940 Total Pages: 130 Get eBook
Soil Conservation Literature United States. Soil Conservation Service. Library Published: 1939 Total Pages: 592 Get eBook
W. P. A. Technical Series United States. Work Projects Administration Published: 1940 Total Pages: 988 Get eBook
Technical Paper No.8 United States. National Resources Planning Board Published: 1942 Total Pages: 212 Get eBook
Technical Paper No.7 United States. National Resources Planning Board Published: 1942 Total Pages: 560 Get eBook
