Não informado. (1969). Occasional papers of the Farlow Herbarium of Cryptogamic Botany. Harvard University.
Chicago-viite (17. p.)Não informado. Occasional Papers of the Farlow Herbarium of Cryptogamic Botany. Cambridge, Mass: Harvard University, 1969.
MLA-viite (8. p.)Não informado. Occasional Papers of the Farlow Herbarium of Cryptogamic Botany. Harvard University, 1969.
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