Cita APA (7a ed.)

Waugh, D., & Bushell, T. (2014). Nelson key geography (5th edition.). Oxford University Press.

Cita Chicago Style (17a ed.)

Waugh, David, y Tony Bushell. Nelson Key Geography. 5th edition. Oxford: Oxford University Press, 2014.

Cita MLA (9a ed.)

Waugh, David, y Tony Bushell. Nelson Key Geography. 5th edition. Oxford University Press, 2014.