Sledge, W. A. (1960). The Polypodiaceae and grammitidaceae of Ceylon. Bulletin of The British museum (Natural History).
Chicago Edition CitationSledge, W. A. The Polypodiaceae and Grammitidaceae of Ceylon. London: Bulletin of The British museum (Natural History), 1960.
MLA Edition CitationSledge, W. A. The Polypodiaceae and Grammitidaceae of Ceylon. Bulletin of The British museum (Natural History), 1960.
Warning: These citations may not always be 100% accurate.