Britten, J. (1879). European ferns. Cassell, Petter, Galpin.
Lua i Stíl Chicago (17ú heag.)Britten, James. European Ferns. London ; New York: Cassell, Petter, Galpin, 1879.
Lua MLA (8ú heag.)Britten, James. European Ferns. Cassell, Petter, Galpin, 1879.
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