APA (7th ed.) Citation

Royal Geographical Society (with The Institute of British Geographers). PHILIP'S WORLD ATLAS / (Twelfth Edition.).

Chicago Style (17th ed.) Citation

Royal Geographical Society (with The Institute of British Geographers). PHILIP'S WORLD ATLAS /. Twelfth Edition.

MLA (8th ed.) Citation

Royal Geographical Society (with The Institute of British Geographers). PHILIP'S WORLD ATLAS /. Twelfth Edition.

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