TY  - BOOK
AU  - Bokx, J.A.
TI  - Viruses of Potatoes and Seed-Potato Production
SN  - 90-220-0358-2
U1  - 635.219 B66V 
PY  - 1972///
CY  - Wageningen
PB  - Pudoc
KW  - Potatoes--Diseases and Pests
ER  -