Zelenko, H., & Bermúdez, P. Orchids the pictorial encyclopedia of oncidium.
Lua i Stíl Chicago (17ú heag.)Zelenko, Harry, agus Pablo Bermúdez. Orchids the Pictorial Encyclopedia of Oncidium.
Lua MLA (8ú heag.)Zelenko, Harry, agus Pablo Bermúdez. Orchids the Pictorial Encyclopedia of Oncidium.
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