APA (7th ed.) Citation

Great Britain. Ordnance Survey. (1923). [Six-inch topographic map of Scotland]. Ordnance Survey Office.

Chicago Style (17th ed.) Citation

Great Britain. Ordnance Survey. [Six-inch Topographic Map of Scotland]. Southampton: Ordnance Survey Office, 1923.

MLA (8th ed.) Citation

Great Britain. Ordnance Survey. [Six-inch Topographic Map of Scotland]. Ordnance Survey Office, 1923.

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