APA (7th ed.) Citation

Bull, G. B. G. (1956). Thomas Milne's Land utilization map of the London area in 1800. [publisher not identified].

Chicago Style (17th ed.) Citation

Bull, G. B. G. Thomas Milne's Land Utilization Map of the London Area in 1800. [London?]: [publisher not identified], 1956.

MLA (9th ed.) Citation

Bull, G. B. G. Thomas Milne's Land Utilization Map of the London Area in 1800. [publisher not identified], 1956.