Braem, G. J., & Senghas, K. (2000). The intriguing case of Cypripedium crossii, its priority over Cypripedium callosum and its transfer to the genus Paphiopedilum. SIDA contributions to botany, 19(2), .
Chicago Style (17th ed.) CitationBraem, Guido J., and Karlheinz Senghas. "The Intriguing Case of Cypripedium Crossii, Its Priority over Cypripedium Callosum and Its Transfer to the Genus Paphiopedilum." SIDA Contributions to Botany 19, no. 2 (2000).
MLA (9th ed.) CitationBraem, Guido J., and Karlheinz Senghas. "The Intriguing Case of Cypripedium Crossii, Its Priority over Cypripedium Callosum and Its Transfer to the Genus Paphiopedilum." SIDA Contributions to Botany, vol. 19, no. 2, 2000.
Warning: These citations may not always be 100% accurate.