TY  - BOOK
AU  - Burdekin, D. A.
TI  - Research on dutch elm disease in Europe: : Prodeedings
T2  - Forest commission bulletin
U1  - 634.9728 
PY  - 1983///
CY  - London
PB  - Her Majesty's Stationery Office
KW  - Olmo
KW  - Enfermedades
ER  -