TY  - BOOK
AU  - Netherlands,Society for Grassland and fodder crops. 25-29 Aug., 80,Wageningen.
TI  - Symposium of the European Grassland Federation on the role of nitrogen in Intensive grassland production
U1  - 633.2 
PY  - 1980///
CY  - Netherlands.
PB  - 
ER  -