TY  - BOOK
AU  - Bovey, Rene.
TI  - Infection of pear trees with apple rubbery wood virus
KW  - Pera
KW  - Enfermedades
N1  - Sobretiro de : Proc. 4th. Symp. on Virus Diseases of Fruit Trees in Europe. Lynby, 1960 pp.25-30
ER  -