Cita APA (7a ed.)

Waugh, D., & Bushell, T. (2002). New key geography for GCSE. Nelson Thornes.

Cita Chicago Style (17a ed.)

Waugh, David, y Tony Bushell. New Key Geography for GCSE. Cheltenham: Nelson Thornes, 2002.

Cita MLA (9a ed.)

Waugh, David, y Tony Bushell. New Key Geography for GCSE. Nelson Thornes, 2002.