TY  - BOOK
AU  - Riehl, Sallie
TI  - Bibliography of dryland agriculture
U1  - 631.0915 
PY  - 1980///
CY  - Corvallis, Ore.
PB  - Oregon State University
KW  - Agricultura
KW  - Regiones áridas
N1  - Contenido : v.1 Bibliogrphy.--v.2 Author index, subject index
ER  -