1.
図書 |
Rebecca Rush ; edited and with an introduction by Dana D. Nelson ; foreword by Cathy N. Davidson
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2.
図書 |
by J.P. Kemble
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3.
雑誌 |
Geological Society of America
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4.
雑誌 |
Agricultural Experiment Station, University of Minnesota
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5.
雑誌 |
United States. Dept. of Agriculture
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6.
雑誌 |
State of Vermont
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7.
雑誌 |
Virginia Agricultural Experiment Station
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8.
図書 |
by Sir John Sinclair
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9.
図書 |
John Dunlop
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10.
図書 |
Board of Agriculture (Great Britain)
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