REFERENCES
- Boulenger, C. L. (1922). On Ascaris vitulorum, Goeze. Parasitology, XIV, pp. 87–92.
- Ransom, B. H. (1911). The Nematodes parasitic in the Alimentary Tract of Cattle, Sheep, and other Ruminants. U.S. Dept. Agr., Bur. Animal Ind. Vol, Bull. 127, p. 25.