P.J.G.J. Hellegers

titleISBN-13
(ISBN-10)
year of publication
The Impact of Environmental Policy on Nitrogen Balances at Farm Level in the European Union978-9O-5242-377-7
(9O-5242-377-6)
1996

G J · J. G. · J J · P.G. · P.J.

P. J. G Kapteyn