The foundations of national prosperity : Studies in the conservation of permanent national resources
Conservation and economic theory; Conservation and economic evolution; Conservation of certain mineral resources; Conservation of human resources.
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| Format: | Book |
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| Language: | Undetermined |
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New York
The Macmillan Comapny
1918
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| Institutions: | Trung tâm Học liệu Trường Đại học Cần Thơ |
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