TY  - BOOK
AU  - Hockensmith, Roy D.
TI  - Water and agriculture
U1  - 631.7 
PY  - 1960///
CY  - Washington
PB  - Association for the Advancement of Science
KW  - Agua
KW  - Conservacion
KW  - Suelos
KW  - Conservación
ER  -