APA (7th ed.) Citation

(1840). British Library: Ministry of Defense maps. [publisher not identified].

Chicago Style (17th ed.) Citation

British Library: Ministry of Defense Maps. [Place of publication not identified]: [publisher not identified], 1840.

MLA (9th ed.) Citation

British Library: Ministry of Defense Maps. [publisher not identified], 1840.

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