TY  - BOOK
AU  - Critchfield, William B.
AU  - Little, Elbert L.
ED  - E.U.A. Forest Service.
TI  - Geographic distribution of the pines of the world
T2  - Miscellaneous publication
U1  - 585.213 
PY  - 1966///
CY  - Washington
PB  - Forest Service
KW  - Pináceas
ER  -