Soil taxonomy a basic system of soil classification for making and interpreting soil surveys
Soil Survey Staff
- Washington, D. C. : Soil Conservation Service, U.S. Dept. of Agriculture 1975
- 754 p. ill. 29cm
- Agriculture handbook no. 436 .
Soil-surveys--United States
Soils--Classification--United States
Soil-surveys--United States
Soils--Classification--United States