National Assembly for Wales, Statistical Directorate, University of Essex, Queen's University Belfast, & Williams, J. L. (2001). Digest of Welsh Historical Statistics: Tourism, parliamentary elections, social services and crime, 1805-1975. UK Data Service. https://doi.org/10.5255/UKDA-SN-4102-1
Chicago-Zitierstil (17. Ausg.)National Assembly for Wales, Statistical Directorate, University of Essex, Queen's University Belfast, und John L. Williams. Digest of Welsh Historical Statistics: Tourism, Parliamentary Elections, Social Services and Crime, 1805-1975. Colchester: UK Data Service, 2001. https://doi.org/10.5255/UKDA-SN-4102-1.
MLA-Zitierstil (8. Ausg.)National Assembly for Wales, Statistical Directorate, et al. Digest of Welsh Historical Statistics: Tourism, Parliamentary Elections, Social Services and Crime, 1805-1975. UK Data Service, 2001. https://doi.org/10.5255/UKDA-SN-4102-1.