TY  - BOOK
AU  - Wareing, P.F., ed.
TI  - Potential crop production; a case study
T2  - Symposium on Potential Crop Production in Britain  held in Aberystwyth in July 1969
U1  - 633.002(41/42):631.95(063) L1 
PY  - 1971///
CY  - London
PB  - Heinemann
KW  -  P.F. Wareing and J.P. Cooper.
KW  - Cooper, J.P., ed.
KW  - Crop yields-Britain-case studies,Crops and climate
ER  -