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Spook Cave (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Spook Cave" in English language version.

refsWebsite
Global rank English rank
1books.google.com
3rd place
3rd place

books.google.com

  • Brick, Greg A. (2004). "Spook Cave". Iowa Underground: A Guide to the State's Subterranean Treasures. Big Earth Publishing. pp. 12–15. ISBN 9781931599399. Retrieved February 22, 2017.