\a Agro-Ecological Zoning: \b Guidelines: Soil Resources, Management and Conservatin Service, FOA Land and Water Development Division \h [Text] \c by Food Agriculture Organization - \a Rome: \b Food and Agriculture Organization Publication, \c 1996. - \a viii,78p.: \b ill.

\a Includes bibliographic references

\a 9251038902

\b Guidelines on soil resources

\a S 482.A34 Fao / \b 503636