Cita APA (7a ed.)

Edexcel International, Phillipson, O., & Milner, S. (2006). Longman geography for IGCSE (2. impr.). Pearson Longman.

Cita Chicago Style (17a ed.)

Edexcel International, Olly Phillipson, y Steve Milner. Longman Geography for IGCSE. 2. impr. Harlow: Pearson Longman, 2006.

Cita MLA (9a ed.)

Edexcel International, et al. Longman Geography for IGCSE. 2. impr. Pearson Longman, 2006.