634.956
K21A
           Kaul, R N (Ed.)
               Afforestation in arid zones \ R N Kaul - Hague : W Junk N V, 1970.
               xi, 435p. - Monographiae biologicae/ ed by P Van Oye; v.20 .
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                Subjects: Afforestation; Forestry and forestry; Refrostation; Arid regions.