Occasional Papers of the Farlow Herbarium of Cryptogamic Botany. Harvard University Herbaria.
Style de citation Chicago (17e éd.)Occasional Papers of the Farlow Herbarium of Cryptogamic Botany. Harvard University Herbaria.
Style de citation MLA (8e éd.)Occasional Papers of the Farlow Herbarium of Cryptogamic Botany. Harvard University Herbaria.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.