870 resultados para Conservation of natural resources - Study and teaching - Sources
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"Appendix to the astronomy. Containing solar and lunar tables, with their explanation and use, and the projection of eclipses, selected from 'Ewing's Practical astronomy'": [233]-297.
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At head of title: "Dredging Research Program."
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On cover: "Issued by the Commercial Club of Fort Wayne".
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Some parts are composed chiefly of statistical tables.
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Bibliography: p. 42.