1. Ashton, G. C., 1959. β-Globulin alleles in some Zebu cattle, Nature, 184, 1135–1136.
2. Ashton, G. C. and Lampkin, G. H., 1965. Serum albumin and transferrin polymorphism in East-African cattle, Nature, 205, 209–210.
3. Carr, W. R., Condy, T. B. and Burrows, P. M., 1965. Transferrin polymorphism of indigenous cattle in Rhodesia and Zambia. (Typed copy obtained by authors).
4. Fitzsimmons, W. M., Sansom, B. F., Hall, J. G., Stewart, J. S. S., Sellwood, S. A. and Harness, E., 1967. Blood transfusion and red cell survival in dizygotic cattle twins, Br. Vet. J., 123, 397–402.
5. McSherry, B. J., van Dreumel, A.A. and Robinson, G. A., 1966. Apparent half-time of bovine red cells labelled in vitro with chromate-Cr-51 and auto-transfused into 10 normal calves, Can. Vet. Jour. J, 176–179.