Não informado. (1927). Contributions from the Dudley Herbarium. Stanford University, Natural History Museum.
Cita Chicago Style (17a ed.)Não informado. Contributions from the Dudley Herbarium. Palo Alto, Calif: Stanford University, Natural History Museum, 1927.
Cita MLA (8a ed.)Não informado. Contributions from the Dudley Herbarium. Stanford University, Natural History Museum, 1927.
Precaución: Estas citas no son 100% exactas.