TY  - BOOK
AU  - Hall, A.E..
TI  - Ecological studies 34 Agriculture in semi-arid environments / 
SN  - 3-540-09414-8
U1  - J:55L9 
PY  - 1992///
CY  - New York : 
PB  - Springer-Verlag cBerlin Heidelberg New York , 
KW  - Agriculture<Dry Region>
ER  -