TY  - BOOK
AU  - Food and Agricultural Organization of the United Nations.
AU  - United Nations Environment Programme.
AU  - FAO/ UNEP Expert Consultation.
TI  - Assessing soil degradation: report of an FAO/ UNEP Expert Consultation held in Rome, 18-20 January, 1977 
SN  - 9251004102
PY  - 1997///
CY  - Rome
PB  - FAO
KW  - Soil degradation
ER  -