Citazione Stile APA (7a Edizione)

Dunn, C., & Witherick, M. (2021). Geography: Physical geography : student guide (Pearson Edexcel A-level, new edition.). Hodder Education Group.

Citazione stile Chigago Style (17a edizione)

Dunn, Cameron, e Michael Witherick. Geography: Physical Geography : Student Guide. Pearson Edexcel A-level, new edition. London: Hodder Education Group, 2021.

Citatione MLA (9a ed.)

Dunn, Cameron, e Michael Witherick. Geography: Physical Geography : Student Guide. Pearson Edexcel A-level, new edition. Hodder Education Group, 2021.