- Wolves (Endangered) by Casey Horton, 1996-01
- Gray Wolves (Eye to Eye With Endangered Species) by Don McLeese, 2010-08
- Endangered Wolves (Earth's Endangered Animals) by Bobbie Kalman, 2004-11-17
- Timber Wolves (Wonder Books Level 1 Endangered Animals) by Cynthia Fitterer Klingel, Robert B. Noyed, 2001-08
- Wolves, (Endangered animals) by J. M Roever, 1974
- The World of Wolves: New Perspectives on Ecology, Behaviour, and Management (Energy, Ecology, and the Envirionment)
- Gray Wolves: Return to Yellowstone (America's Animal Comebacks) by Meish Goldish, 2007-07-31
- Timber Wolves to Cross Stitch (Endangered Species Series, 10103) by Al Agnew, 1990
- Wolves (Endangered!) by Ruth Bjorklund, 2008-09
- Will the wolves win?(endangered species): An article from: Earth Focus One Planet-One Community by Kezia Saunders, 2009-09-22
- Red Wolves: And Then There Were (Almost) None (America's Animal Comebacks) by Meish Goldish, 2009-01
- Recovery of Gray Wolves in the Great Lakes Region of the United States: An Endangered Species Success Story
- Gray Wolves Under the Endangered Species Act (ESA): Distinct Population Segments and Experimental Populations by Kristina Alexander, M. Lynee Corn, 2010-02-26
- Wolves for Yellowstone? A Report to the United States Congress - Volumes I, II, III, & IV
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