APA (7th ed.) Citation

Institute of British Georaphers, Royal Geographical Society, & Lye, K. (2002). Philip's world atlas & gazetteer (10th ed.). Philip's.

Chicago Style (17th ed.) Citation

Institute of British Georaphers, Royal Geographical Society, and Keith Lye. Philip's World Atlas & Gazetteer. 10th ed. London: Philip's, 2002.

MLA (9th ed.) Citation

Institute of British Georaphers, et al. Philip's World Atlas & Gazetteer. 10th ed. Philip's, 2002.