1. Prokop, O., and G. Uhlenbruch 1969. Human Blood and Serum Groups. Maclaren, London.
2. Giblet, E. 1969. The red cell antigens: Blood groups. In: Genetic Markers in Human Blood. Blackwell, Oxford, pp. 268 – 345.
3. Winzler, R. J. 1970. Carbohydrates in cell surfaces. Int. Rev. Cytol. 7: 77 – 125.
4. Springer, G. F. 1974. The role of blood group-active substances. In: 4th International Convocation on Immunology. E. Neter and F. Milgrom, eds. Karger, Basel, pp. 202 – 217.
5. Watkins, W. M. 1974. Blood group substances: Their nature and genetics. In: The Red Blood Cell, Vol. I. D. M. Surgenor, ed. Academic Press, New York. pp. 293 – 360.