Não informado. (1969). Occasional papers of the Farlow Herbarium of Cryptogamic Botany. Harvard University.
Citace podle Chicago (17th ed.)Não informado. Occasional Papers of the Farlow Herbarium of Cryptogamic Botany. Cambridge, Mass: Harvard University, 1969.
Citace podle MLA (8th ed.)Não informado. Occasional Papers of the Farlow Herbarium of Cryptogamic Botany. Harvard University, 1969.
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