357961 Davies, E. M. (1977). A classification of urban populations in England and Wales, 1951-1971. Birmingham : University of Birmingham Environmental Modelling and Survey Unit.
Chicago-referens (17:e uppl.)357961 Davies, E. M. A Classification of Urban Populations in England and Wales, 1951-1971. Birmingham : University of Birmingham Environmental Modelling and Survey Unit, 1977.
MLA-referens (9:e uppl.)357961 Davies, E. M. A Classification of Urban Populations in England and Wales, 1951-1971. Birmingham : University of Birmingham Environmental Modelling and Survey Unit, 1977.
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