TY  - BOOK
AU  - Hansen, E. M.
TI  - Forest pathogens of N. W. North America: : and their potential for damage in Britain
T2  - Forestry commission forest record
PY  - 1985///
CY  - London
PB  - Her Majesty's Stationery Office
KW  - Coníferas
KW  - Enfermedades
KW  - Plagas
ER  -