Bittler, A. H. ; Roberts, D. F. ; Symposium of the Galton Institute, 27 th, London, 19 - Minority populations : genetics, demography and health : proceedings of the twenty-seventh annual symposium of the Galton Institute, London, 19 (...). London : MacMillan : Galton Institute, 1992. 267 p. ISBN 0-333-54694-6