TY  - BOOK
AU  - Hurd R G Ed.
ED  - Anniversary Meeting of the Association of Applied Biologists (75th :1979 : Reading University)
ED  - 
TI  - Opportunities for increasing crop yields: proceedings
U1  - 631 
PY  - 1980///
CY  - Boston
PB  - Pitman
KW  - Crop yields
KW  - The farm and farmstead
ER  -