1. 1W.G. Cochran (1977 )Sampling Techniques. John Wiley, Chichester.
2. 2R.B. Davies (1987 ) The limitations of cross-sectional analysis . InLongitudinal Data Analysis: Surrey Conferences on Sociological Theory and Method 4(Crouchley R. ed.), Gower, Avebury, Hampshire, pp. 1-15.
3. 3R. Elkan, and J. Robinson (1991 )The Implementation of Project 2000 in a District Health Authority: The Effect on the Nursing Service. Department of Nursing Studies, University of Nottingham, Nottingham.
4. 4English National Board (1988 )Changes in the Organisational Arrangements Between Health Authorities and Between Health Authorities and Centres of Higher and Advanced Further Education 1988/13/APS. English National Board for Nursing, Midwifery and Health Visiting, London.
5. The first year as a staff nurse: the experiences of a first cohort of Project 2000 nurses in a demonstration district