Arid zone forestry : a guide for field technicians / Food and Agriculture Organization of the United Nations. - Rome : Food and Agriculture Organization of the United Nations, 1989. - vii, 143 p. : ill. - FAO conservation guide ; 20 . ISBN: 9251028095 LCCN: 44041761 Subjects--Topical Terms: Forestry--Management--Arid regions. Subjects--Geographic Terms: Arid regions--Agriculture.