Holttum, R.E. 1949: The classification of ferns. – Biol. Rev. Cambridge Philos. Soc. 24: 267-296

Title	The classification of ferns
Authorship	Holttum, R.E.
Date published	1949
Volume	24
In journal	Biol. Rev. Cambridge Philos. Soc.
Pages	267-296