1. Endangered Species Act of 1973 16 U.S.C. 1531–1544 87 Stat. 884 .
2. U.S. Department of the Interior, “Salazar, Ashe finalize agreement with Wyoming on revised Gray Wolf management plan” (3 August 2011).
3. The Northern Rocky Mountain Gray Wolf Is Not Yet Recovered
4. “Judge Molloy rejects settlement to lift wolf protections in Montana, Idaho,”;Ridler K.;Missoulian,2011
5. “Hunting group turning up heat on wolves,”;Hollenhorst J.;KSL Newsradio,2010