Ossenbach, C. (2018). Orchids in the era of Grigory von Langsdorff: Two golden decades in the history of the botanical exploration of Brazil (1813–1830).
Chicago-tyylinen lähdeviittausOssenbach, Carlos. Orchids in the Era of Grigory Von Langsdorff: Two Golden Decades in the History of the Botanical Exploration of Brazil (1813–1830). 2018.
MLA-viiteOssenbach, Carlos. Orchids in the Era of Grigory Von Langsdorff: Two Golden Decades in the History of the Botanical Exploration of Brazil (1813–1830). 2018.
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