1. Methods of Investigating Predation of Livestock;Acorn;Edmonton, Alberta, Alberta Agriculture Agdex,1990
2. Inc: Sheep Production Handbook;American Sheep Industry Association,1990
3. Differential vulnerability of lambs to coyote predation;Blakesley;Applied Animal Behavioral Science,1984
4. Domestic animal losses to coyotes and dogs in Iowa;Boggess;Journal of Wildlife Management,1978
5. Field criteria for predator damage assessment;Bowns;Utah Science,1976