Não informado. (1890). Contributions from the United States National Herbarium. Smithsonian Institution.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Contributions from the United States National Herbarium. Washington: Smithsonian Institution, 1890.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Contributions from the United States National Herbarium. Smithsonian Institution, 1890.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.