APA (7th ed.) Citation

Great Britain. Ordnance Survey. (1960). Dorchester. Ordnance Survey.

Chicago Style (17th ed.) Citation

Great Britain. Ordnance Survey. Dorchester. Southampton: Ordnance Survey, 1960.

MLA (9th ed.) Citation

Great Britain. Ordnance Survey. Dorchester. Ordnance Survey, 1960.

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