Não informado. (1919). Memoirs of the Botanical Survey of South Africa. Department of Agricultural Technical Services, Botanical Research.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Memoirs of the Botanical Survey of South Africa. Pretoria, Africa do Sul: Department of Agricultural Technical Services, Botanical Research, 1919.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Memoirs of the Botanical Survey of South Africa. Department of Agricultural Technical Services, Botanical Research, 1919.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.