1. SAC veterinary services disease surveillance report;Anon.;Vet. Rec.,2006
2. VLA surveillance report;Anon.;Vet. Rec.,2007
3. Epidemiology of parasitic gastroenteritis in cattle and sheep;Armour;Vet. Rec.,1986
4. Control by management;Barger;Vet. Parasitol.,1997
5. A survey of anthelmintic resistant nematode parasites in Scottish sheep flocks;Bartley;Vet. Parasitol.,2003