International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1913)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1914)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1915)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1916)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1919)

International catalogue of scientific literature [Sect.] M. Botany : 1st -14th annual issues, 1901-1914 (Published for the International Council by the Royal Society of London, 1904)

International catalogue of scientific literature [Sect.] M. Botany : 1st -14th annual issues, 1901-1914 (Published for the International Council by the Royal Society of London, 1905)

An interpretation of Rumphius's Herbarium amboinense - Robinson, Charles Budd, 1871 -1913 (Bureau of printing, 1917)

An introduction to bacterial diseases of plants - Smith, Erwin F. (Erwin Frink), 1854 -1927 (Saunders, 1920)

An introduction to bacterial diseases of plants - Smith, Erwin F. (Erwin Frink), 1854 -1927 (W. B. Saunders company, 1920)

An introduction to historical plant geography - Brissenden, Elizabeth. (Chronica Botanica Co, 1943)

An introduction to the chemistry of plant products - Haas, Paul, 1877 - (Longmans, 1917)

Introduction to the chemistry of plant products - Haas, Paul, 1877 - (Longmans, Green and co, 1913)

An introduction to the chemistry of plant products - Haas, Paul, 1877 - (Longmans, Green, 1917)

An introduction to the chemistry of plant products - Haas, Paul, 1877 - (Longmans, Green, and co, 1921)

An introduction to the embryology of angiosperms - Maheshwari, P. (Panchanan), 1904 -1966 (McGraw-Hill, 1950)

An introduction to the flora of Natal and Zululand - Bews, J. W. (John William), 1884 -1938 (City Printing Works, 1921)

An introduction to the structure and reproduction of plants - Fritsch, Felix Eugene, 1879 -1954 (Bell, 1920)

An introduction to the structure and reproduction of plants - Fritsch, Felix Eugene, 1879 -1954 (G. Bell and sons ltd, 1920)

Introduction to the study of palaeontological botany - Balfour, John Hutton, 1808 -1884 (Adam and Charles Black, 1872)

Introduction to the systematy of Indian trees - Church, A. H. (Arthur Harry), 1865 -1937 (Oxford University Press, 1921)

Introduction to the systematy of Indian trees - Church, A. H. (Arthur Harry), 1865 -1937 (H. Milford, Oxford university press, 1921)

Inventory of seeds and plants imported - United States. Bureau of Plant Industry. (G.P.O, 1914)

Inventory of seeds and plants imported - United States. Bureau of Plant Industry. (G.P.O, 1913)

Inventory of seeds and plants imported - United States. Bureau of Plant Industry. (G.P.O, 1921)

Inventory of seeds and plants imported - United States. Bureau of Plant Industry. (G.P.O, 1922)

Inventory of seeds and plants imported - United States. Bureau of Plant Industry. (G.P.O, 1919)

Inventory of seeds and plants imported - United States. Bureau of Plant Industry. (G.P.O, 1920)

Inventory of seeds and plants imported - United States. Bureau of Plant Industry. (G.P.O, 1923)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1839)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1840)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1841)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1843)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1844)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1846)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1848)

Island biology - Carlquist, Sherwin John, 1930 - (Columbia University Press, 1974)

Island life, or, The phenomena and causes of insular faunas and floras : including a revision and attempted solution of the problem of geological climates - Wallace, Alfred Russel, 1823 -1913 (Macmillan, 1902)

Island life; or, the phenomena and causes of insular faunas and floras, including a revision and attempted solution of the problem of geological climates - Wallace, Alfred Russel, 1823 -1913 (Macmillan, 1880)

Itinerary notes of plants collected in the Khasyah and Bootan Mountains 1837-38, in Affghanistan and neighbouring countries 1839-1841 - Griffith, William, 1810 -1845 (1848)

IUCN Directory of Afrotropical Protected Areas (1987)