APA (7th ed.) Citation

England. Ordnance Survey Office. Ordenance survey map of N.E. London and district (Coloured ed.).

Chicago Style (17th ed.) Citation

England. Ordnance Survey Office. Ordenance Survey Map of N.E. London and District. Coloured ed. [London].

MLA (9th ed.) Citation

England. Ordnance Survey Office. Ordenance Survey Map of N.E. London and District. Coloured ed.

Warning: These citations may not always be 100% accurate.