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Mid-Wales : an assessment of the impact of the Development Commission Factory Programme
Law, David, (1972)
Industrial South Wales : 1750-1914 ; essays in Welsh economic history
Minchinton, Walter E., (1969)
Population and industrial decline in the South Wales Coalfield
Rees, Teresa L., (1978)
Linkage of the 1981 and 1991 UK Censuses using surface modelling concepts
Bracken, I., (1995)
Market segmentation analysis
Whelan, Gerard, (2001)