TY  - BOOK
AU  - Arnon, Isaac.
TI  - Crop production in dry regions
T2  - Plant science monographs
U1  - 631.0915 
PY  - 1972///
CY  - London
PB  - Leonard Hill
KW  - Regiones áridas
KW  - Agricultura
N1  - Contenido: v.1 Background and principles.- v.2 Systematic treatment of the principal crops
ER  -