Census 1961 : England and Wales Population, dwellings, households. Derbyshire, Leicestershire, Northamptonshire, Nottinghamshire, Soke of Peterborough / General Register Office. - London : HMSO, 1963. - 19p. . On cover: "Leaflet no. 13" Subjects--Topical Terms: Households--Statistics.--Great BritainDwellings--Statistics.--Great Britain Subjects--Geographic Terms: Great Britain--Census, 1961.Great Britain--Population--Statistics.Derbyshire (England)--Census, 1961.Leicestershire (England)--Census, 1961.Northamptonshire (England)--Census, 1961.Nottinghamshire (England)--Census, 1961.Peterborough (England: District)--Census, 1961.