1. Anon.: Centenary 1865-1964, A Century of Endeavor to Control Diseases of Animals. Min. of Ag. Fisheries and Food. London: Her Majestys Stationery Office, 1965.
2. Erno H, Stipkovits L: Bovine Mycoplasmas: Cultural and Biochemical Studies. Acta Vet Scand 14: 450 - 463, 1973.
3. FAO: Report of the 3rd Meeting of the FAO/OIE/OUA Expert Panel on CBPP, Khartoum, Sudan, Rome: FAO, 1967.
4. Freundt EA: Present Status of the Medical Importance of Mycoplasms. Pathiol Microbiol 40: 155 - 187, 1974.
5. Hudson JR: Contagious Bovine Pleuropneumonia. FAO Agricultural Studies No. 86. Rome: FAO, 1971.