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1Land, man, and sand; desertification and its solution Land, man, and sand; desertification and its solutionby Walls, J.
Published 1980Texto bibliotecaFAO IT -
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4Combating desertification in China; a report on a seminar sponsored by the Academy of Sciences of the People's Republic of China and the UNEP (United Nations Environment Programme) Combating desertification in China; a report on a seminar sponsored by the Academy of Sciences of the People's Republic of China and the UNEP (United Nations Environment Programme)by Walls, J. (ed.)
Published 1982Texto bibliotecaFAO IT -
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