TY  - BOOK
AU  - Hall, Anthony E.
AU  - Cannell, G. H.
AU  - Lawton, H. W.
TI  - Agriculture in semi-arid environments
T2  - Ecological studies
U1  - 631.0915 
PY  - 1979///
CY  - New York
PB  - Springer-Verlag
KW  - Agricultura
KW  - Regiones áridas
ER  -