Isaak, Dan; Rieman, Bruce; Horan, Dona (April 2009). "A watershed-scale monitoring protocoal for bull trout"(PDF). Fort Collins, CO: Rocky Mountain Research Station, U.S. Forest Service. Archived(PDF) from the original on October 26, 2011. Retrieved May 21, 2012.
Aug. 19, Deborah Hill; Now, 2002 From the print edition Like Tweet Email Print Subscribe Donate (2002-08-19). "Attack of the bark beetles". www.hcn.org. Retrieved 2019-07-13. {{cite web}}: |first2= has generic name (help)CS1 maint: numeric names: authors list (link)
Ring, Ray (May 27, 2002). "Wolf at the Door". High Country News. Archived from the original on November 20, 2012. Retrieved August 26, 2012.
jstor.org
Dant Ewert, Sara E. (Summer 2000). "Peak park politics: the struggle over the Sawtooths, from Borah to Church". The Pacific Northwest Quarterly. 91 (3). Seattle, WA: University of Washington: 138–149. ISSN0030-8803. JSTOR40492581.
Isaak, Dan; Rieman, Bruce; Horan, Dona (April 2009). "A watershed-scale monitoring protocoal for bull trout"(PDF). Fort Collins, CO: Rocky Mountain Research Station, U.S. Forest Service. Archived(PDF) from the original on October 26, 2011. Retrieved May 21, 2012.
Dant Ewert, Sara E. (Summer 2000). "Peak park politics: the struggle over the Sawtooths, from Borah to Church". The Pacific Northwest Quarterly. 91 (3). Seattle, WA: University of Washington: 138–149. ISSN0030-8803. JSTOR40492581.