APA (7th ed.) Citation

Local Government Information Unit (London, England), & Great Britain. Ordnance Survey. (2016). 2016 political control local authorities map. [Hemming Information Services].

Chicago Style (17th ed.) Citation

Local Government Information Unit (London, England), and Great Britain. Ordnance Survey. 2016 Political Control Local Authorities Map. [London]: [Hemming Information Services], 2016.

MLA (9th ed.) Citation

Local Government Information Unit (London, England), and Great Britain. Ordnance Survey. 2016 Political Control Local Authorities Map. [Hemming Information Services], 2016.