Williams, B., & Kramer, J. Native ecuadorian orchids: Rodriguezia-zygosepalum.
Cita Chicago (17th ed.)Williams, Brian, i Jack Kramer. Native Ecuadorian Orchids: Rodriguezia-zygosepalum.
Cita MLA (8th ed.)Williams, Brian, i Jack Kramer. Native Ecuadorian Orchids: Rodriguezia-zygosepalum.
Atenció: Aquestes cites poden no estar 100% correctes.