TY  - BOOK
AU  - Briggs,David J.
TI  - Agriculture and Environment:The Physical Geography of Temperate Agricultural Systems
SN  - 0-582-00413-6
AV  - 630.912/BRI 2
U1  - 630.912/BRI 
PY  - 1989///
PB  - Longman Scientific and Technical
ER  -