- E-bookEcological Studies of the Timber Wolf in Northeastern MinnesotaL. David Mech
- E-bookEcological Studies of the Timber Wolf in Northeastern MinnesotaRobert R. Ream
- E-bookAn Experimental Translocation of the Eastern Timber WolfRichard A. Hook
- E-bookAn Experimental Translocation of the Eastern Timber WolfRichard A. Hook