1. The prevalence of bovine parasites in various environments within the lowland tropical country of Guyana;Craig,1975
2. Studies on the epidemiology of trypanosomiasis in sheep and goats in Kenya
3. Comparison of diagnostic techniques during subclinical single infections of trypanosomiasis in goats
4. Helminths, Anthropods and Protozoa of Domesticated Animals;Soulsby,1982