TY  - BOOK
ED  - American Society of Agricultural Engineers
TI  - Irrigation, challenges of the 80's; proceedigns of the ASAE Second National Irrigation Symposium
T2  - ASAE publication
U1  - 631.7 
PY  - 1981///
CY  - St. Joseph, Mich.
KW  - Irrigación
ER  -