TY  - BOOK
AU  - Bokx,J.A.de
TI  - Viruses of potatoes and seed-potato production
SN  - 9022003582
PY  - 1972///
CY  - Wageningen
PB  - Pudoc
KW  - Potatoes
KW  - Diseases and pests
KW  - Virus diseases of plants
ER  -