TY  - GEN
AU  - Lansink,Alfons G.J.M.Oude
AU  - 
ED  - 
ED  - 
ED  - 
TI  - New approaches to the economics of plant health
U1  - 632.9 
PY  - 2007///
CY  - New York
PB  - Springer
KW  - 
ER  -