TY  - BOOK
AU  - Pearson, Gustaf Adolph.
TI  - Management of ponderosa pine in the southwest as developed by research and experimental practice
T2  - Agriculture monograph
U1  - 634.9751 
PY  - 1950///
CY  - Washington
PB  - Departament of Agriculture
KW  - Pinus ponderosa
ER  -