Zelenko, H., & Bermúdez, P. Orchids the pictorial encyclopedia of oncidium.
Cita Chicago (17th ed.)Zelenko, Harry, i Pablo Bermúdez. Orchids the Pictorial Encyclopedia of Oncidium.
Cita MLA (8th ed.)Zelenko, Harry, i Pablo Bermúdez. Orchids the Pictorial Encyclopedia of Oncidium.
Atenció: Aquestes cites poden no estar 100% correctes.