Blood, D. 2000. Thinhorn Sheep in British Columbia. B.C. Minist. Environ., Lands and Parks, Wildl. Branch. 6pp.

Shackleton, D. 1999. Hoofed Mammals of British Columbia. UBC Press in collaboration with Royal B.C. Mus. 272pp.

Cross-Linked Information Resources (CLIR): an umbrella search web application that allows users to use a single window to simultaneously search six provincial environmental and natural resource information e-libraries and provides access to digital documents in these e-libraries.