Land resources

1939 Agricultural conservation program. Proposed changes from the 1938 Agricultural conservation program

United States. Agricultural Adjustment Administration

Camp planning and camp reconstruction

By E. P. Meinecke...

Statement on forest practices adopted at Forest conservation conference, Washington, D.C., Jan. 26, 1934

United States. Department of Agriculture. National Agricultural Library.

The woods-wise camper

United States. Forest Service. Eastern Region

The wildlife land-purchase and development program of the U.S. Biological survey

United States. Bureau of Biological Survey

Conservation in the Klickitat, using grasses and legumes

United States. Soil Conservation Service. Pacific Region

Hints for campers in the national forests. U.S. Department of agriculture. Forest service. California region

United States. Forest Service. California Region

Blackwater river migratory bird refuge area - description

United States. Bureau of Biological Survey

Migratory bird treaty act regulations relating to scientific-collecting permits

United States. Bureau of Biological Survey

Migratory bird treaty act regulation relating to propagating permits

United States. Bureau of Biological Survey