AUTHORS: Boerker, Richard Hans Douai, 1887-
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LANGUAGES: English
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Found 5 Books

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Our national forests a short popular account of the work of the United States Forest Service on the national forests

Our national forests a short popular account of the work of the United States Forest Service on the national forests

By Boerker, Richard Hans Douai, 1887- . Genre United States.Forest Service. / Forests and forestry / United States . Names california / area / wood / areas / na and 838 more
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Our national forests a short popular account of the work of the United States Forest Service on the national forests

Our national forests a short popular account of the work of the United States Forest Service on the national forests

By Boerker, Richard Hans Douai, 1887- . Genre United States.Forest Service. / Forests and forestry / United States . Names california / area / wood / areas / na and 838 more
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Ecological investigations upon the germination and early growth of forest trees

Ecological investigations upon the germination and early growth of forest trees

By Boerker, Richard Hans Douai, 1887- . Genre Trees / Germination / Growth (Plants) . Names soil / seeds / pinus / plants / robinia and 647 more
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Our national forests a short popular account of the work of the United States Forest service on the national forests

Our national forests a short popular account of the work of the United States Forest service on the national forests

By Boerker, Richard Hans Douai, 1887- . Genre United States.Forest Service. / Forests and forestry / United States . Names california / area / areas / wood / na and 1651 more
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Ecological investigations upon the germination and early growth of forest trees

Ecological investigations upon the germination and early growth of forest trees

By Boerker, Richard Hans Douai, 1887- . Genre Trees / Germination / Growth (Plants) . Names soil / seeds / robinia / pinus / s d and 1365 more
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AUTHORS

  • Boerker, Richard Hans Douai, 1887- [5]

LANGUAGES

  • English [5]

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