Não informado. (1932). Report and accounts of the National Botanic Gardens of South Africa. National Botanic Gardens of South Africa.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Report and Accounts of the National Botanic Gardens of South Africa. Cape Town, Africa do Sul: National Botanic Gardens of South Africa, 1932.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Report and Accounts of the National Botanic Gardens of South Africa. National Botanic Gardens of South Africa, 1932.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.