Citazione Stile APA (7a Edizione)

Warren, S., & Harcourt, M. (2012). Tomorrow's geography for Edexcel GCSE specification A (4. ed.). Hodder Education.

Citazione stile Chigago Style (17a edizione)

Warren, Steph, e Mike Harcourt. Tomorrow's Geography for Edexcel GCSE Specification A. 4. ed. London: Hodder Education, 2012.

Citatione MLA (9a ed.)

Warren, Steph, e Mike Harcourt. Tomorrow's Geography for Edexcel GCSE Specification A. 4. ed. Hodder Education, 2012.