References
- Brunsdon , R. V. 1960 . Host parasite checklist of domestic ruminants in New Zealand . N.Z. vet. J. , 8 : 80 – 81 .
- Brunsdon , R. V. 1964 . The incidence of gastro-intestinal nematodes in cattle in New Zealand . N.Z. vet. J. , 12 : 135 – 139 .
- Lancaster , M. B. 1969 . The identity of Ostertagia trifurcata Ransom, 1907 . J. Helminth. , 43 : 365 – 370 .
- Sarwar , N. M. 1954 . On the occurrence of Ostertagia pinnata Daubney, 1933 in association with Ostertagia trifurcata Ransom, 1907 in India and Great Britain . J.Helminth. , 28 : 151 – 154 .
- Skrjabin , K. I. , Shikhobalova , N. P. and Shul'ts , R. S. 1954 . “ Essentials of Nematodology ” . In Trichostrongylids of animals and man , Vol. 3 , 244 – 244 . Jerusalem : The Israel Program for Scientific Translations .
- Smith , H. J. and Archibald , R. McG. 1969 . Development of cross immunity in lambs by exposure to bovine gastrointestinal parasites . Can. vet. J. , 10 : 286 – 290 .
- Stringfellow , F. 1969 . Functional morphology and histochemistry of structural proteins of the genital cone of Cooperia punctata (Von Linstow, 1907) Ransom, 1907, a nematode parasite of ruminants . J. Parasit. , 55 : 1191 – 1200 .
- Tetley , J. H. 1934 . The nematodes of sheep in Manawatu district, New Zealand . J. Helminth. , 12 : 183 – 196 .