TY  - BOOK
AU  - Dregne,H.E.
AU  - Willis,W.O.ed
ED  - Crop Science Society of America. CSSA. 
ED  - Soil Science Society of America. SSA. 
ED  - American Society of Agronomy. ASA. 
TI  - Dryland agriculture. 
T2  - Agronomy
PY  - 1983///
CY  - Madison, WI
PB  - American Society of Agronomy; Crop Science Society of America; Soil Science Society of America
KW  - Cultivo de secano
KW  - Suelo
KW  - Ecología vegetal
ER  -