TY  - BOOK
AU  - Davidson, A. G.
ED  - Canada. Department of Forestry and Rural Development.
ED  - FAO.
TI  - Important forest insects and diseases of mutual concern to Canada: : The United States and Mexico
U1  - 634.96 
PY  - 1967///
CY  - Ottawa
PB  - Queen's Printer
KW  - Árboles
KW  - Enfermedades
KW  - Plagas
ER  -