APA (7th ed.) Citation

(1989). Classical areas of British geology. Director General of the Ordnance Survey.

Chicago Style (17th ed.) Citation

Classical Areas of British Geology. Southampton: Director General of the Ordnance Survey, 1989.

MLA (9th ed.) Citation

Classical Areas of British Geology. Director General of the Ordnance Survey, 1989.

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