00682nam a2200193Ia 4500 0000006332 20251012174450.0 710226s1970 dcuab b 101 0 eng 0871680904 S613 .I48 1969 630/.915/4 Arid lands in transition; [papers] Edited by Harold E. Dregne. Washington [American Association for the Advancement of Science] 1970. xiii, 524 p illus., maps 24 cm. Includes bibliographies. Agriculture Congresses. Arid regions Congresses. Publication (American Association for the Advancement of Science) no. 90. 4105 4105 0 0 0 0 KEM KEM 2012-12-07 0 0000003687 2025-10-12 08:34:47 2025-10-12 OS