Sarvela, J. (1980). Gymnocarpium hybrids from Canada and Alaska. [s.l.]: [s.n.].
Chicago Style CitationSarvela, Jaakko. Gymnocarpium Hybrids From Canada and Alaska. [s.l.]: [s.n.], 1980.
MLA CitationSarvela, Jaakko. Gymnocarpium Hybrids From Canada and Alaska. [s.l.]: [s.n.], 1980.
Warning: These citations may not always be 100% accurate.