Article/Chapter Title: Rediscovery of Montana snails. Author(s): Paul Hendricks. Subject(s): Discus brunsoni and Oreohelix elrodi and O. alpina. Page(s): Page ...
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The Nautilus. Melbourne, Fla., etc.,American Malacologists, inc., etc. http://www.biodiversitylibrary.org/bibliography/6170
v. 112 (1998): http://www.biodiversitylibrary.org/item/34210 Article/Chapter Title: Rediscovery of Montana snails Author(s): Paul Hendricks Subject(s): Discus brunsoni and Oreohelix elrodi and O. alpina Page(s): Page 58, Page 59, Page 60, Page 61, Page 62
