Die Lepidopteren der Schweiz - Frey, Heinrich, 1822 -1890 (W. Engelmann, 1880)

Der Lichtgenuss der Pflanzen : photometrische und physiologische Untersuchungen mit besonderer Rücksichtnahme auf Lebensweise, geographische Verbreitung und Kultur der Pflanzen - Wiesner, Julius, 1838 -1916 (W. Engelmann, 1907)

Light in relation to tree growth - Graves, Henry S. (Henry Solon), 1871 -1951 (U.S. Dept. of Agriculture, Forest Service, 1911)

lin ye ming ci - Zhongguo ke xue yuan bian yi ju (zhong guo ke xue yuan, 1954)

The Lincolnshire naturalist : transactions of the Lincolnshire Naturalists' Union - Lincolnshire Naturalists' Union. (Lincolnshire Naturalists' Union, 1997)

The Lincolnshire naturalist : transactions of the Lincolnshire Naturalists' Union - Lincolnshire Naturalists' Union. (Lincolnshire Naturalists' Union, 2003)

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The lipids, their chemistry and biochemistry - Deuel, Harry James, 1897 -1956 (Interscience Publishers, 1951)

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List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1937)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1938)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1939)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1940)

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List of nursery stock : grown in our own nurseries, available for export to the U.S.A. and Canada, during fall 1949 and spring 1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hjortsoe's Planteskole, 1949)

A list of the aphids of Oregon (Homoptera: Aphididae) - Leonard, Mortimer Demarest, 1890 - (Agricultural Research Service, 1974)

Lists of plant types for landscape planting; the materials of planting for ornament listed according to their various uses - Hamblin, Stephen F. (Stephen Francis), 1884 - (Harvard University Press, 1923)

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London Naturalist - London Natural History Society. (London Natural History Society, 1960)

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London Naturalist - London Natural History Society. (London Natural History Society, 1962)

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London Naturalist - London Natural History Society. (London Natural History Society, 1983)

London Naturalist - London Natural History Society. (London Natural History Society, 1984)

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London Naturalist - London Natural History Society. (London Natural History Society, 1986)

London Naturalist - London Natural History Society. (London Natural History Society, 1987)

London Naturalist - London Natural History Society. (London Natural History Society, 1988)

London Naturalist - London Natural History Society. (London Natural History Society, 1989)

London Naturalist - London Natural History Society. (London Natural History Society, 1990)

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