TY  - BOOK
AU  - Quak, F., ed.
AU  - Beemster, A.B.R., ed.
AU  - Dijkstra, J., ed.
AU  - van der Want, J.P.H., ed.
TI  - Conference on Potato Virus Diseases, 3rd Lisse-Wageningen, June24-28, 1957
PY  - 1958///
CY  - Wageningen
PB  - H. Veenman & Zonen
ER  -