TY  - BOOK
AU  - Pearson, C. J. and others,
TI  - Sustainable Dryland Cropping in Relation to Soil Productivity
SN  - 9251037922
U1  - 631 
PY  - 1995///
CY  - Rome
PB  - F. A. O.
KW  - Soil Science
KW  - Techniques, equipment & materials
ER  -