TY  - BOOK
AU  - Pearson , G.A.
TI  - Forest types in the southwest as determined by climate and soil
U1  - 634.9 21st ed.
PY  - 1931///
CY  - Washington
PB  - Department of Agriculture, Government of U.S
KW  - Forest microbiology-United States
KW  - Forests and forestry-United States
KW  - Soils-United States
ER  -