TY  - BOOK
AU  - Hillel, Daniel, ed.
TI  - Optimizing the soil physical environment toward greater crop yields
U1  - 631.412 L2 
PY  - 1972///
CY  - New York
PB  - Academic
KW  - Edited by Daniel Hillel
KW  - Soil science,Environment,Physiology
ER  -