Cita APA (7th ed.)

Polinski, W. (1928). On Pirostoma Dubia cravenensis Tayl., Its affinities and its Geographical origin. Zenodo.

Cita Chicago (17th ed.)

Polinski, W. On Pirostoma Dubia Cravenensis Tayl., Its Affinities and Its Geographical Origin. Zenodo, 1928.

Cita MLA (9th ed.)

Polinski, W. On Pirostoma Dubia Cravenensis Tayl., Its Affinities and Its Geographical Origin. Zenodo, 1928.