Citazione Stile APA (7a Edizione)

Sampson, D., Du Preez, A., & O'Callaghan, B. (2007). Understanding history in context (Revised curriculum.). Longman Namibia.

Citazione stile Chigago Style (17a edizione)

Sampson, David, Andrea Du Preez, e Bryn O'Callaghan. Understanding History in Context. Revised curriculum. Windhoek: Longman Namibia, 2007.

Citatione MLA (9a ed.)

Sampson, David, et al. Understanding History in Context. Revised curriculum. Longman Namibia, 2007.