APA (7th ed.) Citation

United States. Soil Conservation Service. (1990). Estimating soil moisture by feel and appearance. U.S. Dept. of Agriculture, Soil Conservation Service.

Chicago Style (17th ed.) Citation

United States. Soil Conservation Service. Estimating Soil Moisture by Feel and Appearance. [Washington, D.C.?]: U.S. Dept. of Agriculture, Soil Conservation Service, 1990.

MLA (9th ed.) Citation

United States. Soil Conservation Service. Estimating Soil Moisture by Feel and Appearance. U.S. Dept. of Agriculture, Soil Conservation Service, 1990.