TY  - BOOK
AU  - Cooke, G. W.
AU  - Pirie, N. W.
AU  - Bell, G. D. H.
AU  - The Royal Society (Great Britain).
TI  - Agricultural efficiency: a Royal Society discussion on the management of inputs for yet greater agricultural yield and efficiency 
SN  - 0854030956
PY  - 1977///
CY  - London
PB  - The Royal Society
KW  - Agriculture
KW  - Great Britain
KW  - Economic aspects
ER  -