APA (7th ed.) Citation

London, N. A., & Senior, M. (1991). Principles of geography for CXC ([2nd ed.].). Longman.

Chicago Style (17th ed.) Citation

London, Norrel A., and Michael Senior. Principles of Geography for CXC. [2nd ed.]. London: Longman, 1991.

MLA (9th ed.) Citation

London, Norrel A., and Michael Senior. Principles of Geography for CXC. [2nd ed.]. Longman, 1991.