Egyptian and American deserts : a selection of papers presented at the Joint Symposium on Arid Lands Ecosystems, with Egyptian and American Scientists, held at the Institute, 12-18 May 1974
Complete Title:
Egyptian and American deserts : a selection of papers presented at the Joint Symposium on Arid Lands Ecosystems, with Egyptian and American Scientists, held at the Institute, 12-18 May 1974