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Proceedings of a regional meeting on the use of ecological guidelines for development in the tropical forest areas of South East Asia, held at Bandung, Indonesia 29 May to 1 June 1...
出版 1975索引号: loading...
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Ecological principles for economic development 由 Dasmann, Raymond Frederick 1919-
出版 1973索引号: loading...
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Symposium the ecological effects of biological and chemical control of undesirable plants and animals. 由 Kuenen, D. J.
出版 1961索引号: loading...
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