TY  - BOOK
AU  - Preston, Richard Joseph.
TI  - North American trees (exclusive of Mexico and tropical United States) : a handbook designed for field use, with plates and distribution maps
SN  - 0262160447(pbk).
U1  - 582.16097 PRE 
PY  - 1970///
CY  - Cambridge, Mass. and London
PB  - The M.I.T Press
KW  - Trees -- United States -- Identification.
KW  - , Trees -- Canada -- Identification
KW  - , North--American--Trees
KW  - , American--Trees
KW  - , Archive
ER  -