TY  - BOOK
AU  - J.A. De Bokx
AU  -  J.P.H. Van derwant, 
TI  - Viruses of potatoes and seed potato production
SN  - 90-220-0859-2
U1  - 635.2198 
PY  - 1987///
CY  - Wageningen
PB  - Pudoc
N1  - J.A. De Bokx & J.P.H. Van derwant: Viruses of potatoes and seed potato production.  Wageningen.  Pudoc, 1987. 90-220-0859-2--(635.2198DE)
ER  -