1. Australian Bureau of Statistics Perinatal Deaths Canberra 1973.
2. Health Commission of New South Wales Report on Perinatal Deaths in N.S.W. 1963–71.
3. Data sources and requirements for perinatal‐epidemiology in Australia;Hobbs M. S. T.;Workshop in Perinatal Medicine, Bulletin of the Postgraduate Committee in Medicine, University of Sydney, Special issue,1976
4. World Health Statistics Manual 1973 1 World Health Organization