Cribb, P. J. (2023). A new endemic species of Polystachya (Polystachyinae) from Eastern Tanzania. Universidad de Costa Rica.
Citazione stile Chigago Style (17a edizione)Cribb, Phillip J. A New Endemic Species of Polystachya (Polystachyinae) from Eastern Tanzania. Universidad de Costa Rica, 2023.
Citatione MLA (9a ed.)Cribb, Phillip J. A New Endemic Species of Polystachya (Polystachyinae) from Eastern Tanzania. Universidad de Costa Rica, 2023.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.