APA (7th ed.) Citation

Royal Geographical Society (with The Institute of British Geographers). (2001). Philip's world atlas (11th edition.). George Philip.

Chicago Style (17th ed.) Citation

Royal Geographical Society (with The Institute of British Geographers). Philip's World Atlas. 11th edition. London: George Philip, 2001.

MLA (8th ed.) Citation

Royal Geographical Society (with The Institute of British Geographers). Philip's World Atlas. 11th edition. George Philip, 2001.

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