TY  - BOOK
AU  - Boon G K
ED  - Netherlands Economic Institute
TI  - Choice of agricultural technology five methods for producing grain
U1  - 631 
PY  - 1961///
CY  - Rotterdam
PB  - NEI
KW  - Grain production
KW  - The farm and farmstead
N1  - Alternative techniques of production, progress report no.6
ER  -