Palmer, A., Witherick, M., Wood, P., & Yates, N. (2009). Geography A: Geographical foundations, Edexcel GCSE (1st publ.). Pearson Education.
Citazione stile Chigago Style (17a edizione)Palmer, Andy, Michael Witherick, Phil Wood, e Nigel Yates. Geography A: Geographical Foundations, Edexcel GCSE. 1st publ. Harlow: Pearson Education, 2009.
Citatione MLA (9a ed.)Palmer, Andy, et al. Geography A: Geographical Foundations, Edexcel GCSE. 1st publ. Pearson Education, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.