Citazione Stile APA (7a Edizione)

Walsh, B. (2009). OCR GCSE Modern world history (First publ. in 1996, 2. ed. 2001, 3. ed., 1. impression.). Hodder Education.

Citazione stile Chigago Style (17a edizione)

Walsh, Ben. OCR GCSE Modern World History. First publ. in 1996, 2. ed. 2001, 3. ed., 1. impression. London: Hodder Education, 2009.

Citatione MLA (9a ed.)

Walsh, Ben. OCR GCSE Modern World History. First publ. in 1996, 2. ed. 2001, 3. ed., 1. impression. Hodder Education, 2009.