"ddixon, john a. "
dryland management: economic case studies/ john.a. ddixon - ed. - britain : earthscan publications 1990. - "xxi, 364p.; 22 cm."
1-85383-054-2 hard cover
arid regions_ natural resources_ management.
HD1580 / .D79 1990
dryland management: economic case studies/ john.a. ddixon - ed. - britain : earthscan publications 1990. - "xxi, 364p.; 22 cm."
1-85383-054-2 hard cover
arid regions_ natural resources_ management.
HD1580 / .D79 1990