APA (7th ed.) Citation

George Philip & Sons, George Philip Cartographic Services, Willett, B., & Fullard, H. (1987). Philips' new world atlas (7th ed.). George Philip.

Chicago Style (17th ed.) Citation

George Philip & Sons, George Philip Cartographic Services, Bill Willett, and Harold Fullard. Philips' New World Atlas. 7th ed. [London: George Philip, 1987.

MLA (9th ed.) Citation

George Philip & Sons, et al. Philips' New World Atlas. 7th ed. George Philip, 1987.