References
- Brunsdon , R. V. 1964 . The incidence of gastrointestinal nematodes in cattle in New Zealand . N.Z. vet. J. , 12 ( 6 ) : 135 – 139 .
- Rose , J. H. 1968 . Species of gastrointestinal nematodes of cattle in S.E. England . Vet. Rec. , 82 ( 22 ) : 615 – 617 .