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Orchideeën welke in Ned.-Indië gekweekt kunnen worden - Dakkus, P. M. W. (A. C. Nix, 1935)

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Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1876)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1877)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1878)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1879)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1881)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1882)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1883)