Não informado. (1969). Occasional papers of the Farlow Herbarium of Cryptogamic Botany. Harvard University.
Chicago-Zitierstil (17. Ausg.)Não informado. Occasional Papers of the Farlow Herbarium of Cryptogamic Botany. Cambridge, Mass: Harvard University, 1969.
MLA-Zitierstil (8. Ausg.)Não informado. Occasional Papers of the Farlow Herbarium of Cryptogamic Botany. Harvard University, 1969.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.