Russula fragilis (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Russula fragilis" in English language version.

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6^th place

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1books.google.com

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archive.org

Arora, David (1986) [1979]. Mushrooms Demystified: A Comprehensive Guide to the Fleshy Fungi (2nd ed.). Berkeley, CA: Ten Speed Press. pp. 98–99. ISBN 978-0-89815-170-1.

books.google.com

Trudell, Steve; Ammirati, Joe (2009). Mushrooms of the Pacific Northwest. Timber Press Field Guides. Portland, OR: Timber Press. p. 52. ISBN 978-0-88192-935-5.