TY  - BK
TI  - A commentary on the 64th dutch descriptive list of varieties of field crops 1989
PY  - 1989///
CY  - Wageningen (Netherlands)
PB  - Committee for the Compilation of the List of Varieties of Field Crops, 
KW  - Crops
KW  - AGROVOC
KW  - Varieties
ER  -