Laerebog i den botaniske terminologie og systemlaere - Drejer, Salomon Thomas Nicolai, 1813 -1842 (Schuboth, 1839)

A Lavoura : boletim da Sociedade Nacional de Agricultura Brazileira - Confederação Rural Brasileira. (Sociedade Nacional de Agricultura, 1916)

The leaf spots of the elm - Miles, Lee Ellis, 1890 - (s.n, 1920)

Leaflets of Philippine botany (Oriental Printing Co, 1913)

Leaflets of Philippine botany (Oriental Printing Co, 1914)

Lectures on plant pathology and physiology in relation to man; a series of lectures given at the Mayo Foundation and the universities of Minnesota, Iowa, Wisconsin, the Des Moines Academy of Medicine, Iowa, and the Iowa State College, 1926-1927 (W. B. Saunders Co, 1928)

Lehrbuch der Baumkrankheiten - Hartig, Robert, 1839 -1901 (Springer, 1889)

Lehrbuch der Botanik - Bischoff, Gottlieb Wilhelm, 1797 -1854 (E. Schweizerbart, 1840)

Lehrbuch der Pflanzenkranzkheiten : für Botaniker, Forstleute, Landwirthe und Gärtner - Hartig, Robert, 1839 -1901 (Springer, 1900)

Lehrbuch der pilzparasitären Pflanzenkrankheiten mit besonderer Berücksichtigung der Krankheiten gärtnerischer Kulturgewächse - Höstermann, Gustav (P. Parey, 1923)

Leopoldina - Kaiserlich Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher (E. Blochmann & Sohn, 1878)

Leopoldina - Kaiserlich Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher (E. Blochmann & Sohn, 1883)

Letters on the diseases of plants. Second series - New South Wales. Dept. of Agriculture. (W.A. Gullick, gov't printer, 1904)

Lexicon generum phanerogamarum inde ab anno MDCCXXXVII : cum nomenclatura legitima internationali et systemate inter recentia medio - Post, Thomas Erik von, 1858 -1912 (Deutsche verlags-anstalt, 1904)

Linnaea : Ein Journal für die Botanik in ihrem ganzen Umfange - Schlechtendal, D. F. L. von (Diedrich Franz Leonhard von), 1794 -1866 (F. Dümmler, 1840)

Linnaea : Ein Journal für die Botanik in ihrem ganzen Umfange - Schlechtendal, D. F. L. von (Diedrich Franz Leonhard von), 1794 -1866 (F. Dümmler, 1852)

Linnaea : Ein Journal für die Botanik in ihrem ganzen Umfange - Schlechtendal, D. F. L. von (Diedrich Franz Leonhard von), 1794 -1866 (F. Dümmler, 1853)

Linnaea : Ein Journal für die Botanik in ihrem ganzen Umfange - Schlechtendal, D. F. L. von (Diedrich Franz Leonhard von), 1794 -1866 (F. Dümmler, 1863)

List of bulletins of the agricultural experiment stations in the United States for the calendar years 1921 and 1922 : supplement 1 - Pennington, Catherine E. (U.S. G.P.O, 1924)

List of foreign pests, pathogens and weeds detected on introduced plants - Leppik, E. E., 1906 -

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1934)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1935)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1936)

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)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1941)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1942)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1943)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1948)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1931)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1973)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1977)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1978)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1963)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1971)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1984)