Matthews, J. A., & Herbert, D. T. (2008). Geography: A very short introduction. Oxford University Press.
Chicago Style (17th ed.) ZitazioaMatthews, John A., eta David T. Herbert. Geography: A Very Short Introduction. Oxford ; New York: Oxford University Press, 2008.
MLA (9th ed.) ZitazioaMatthews, John A., eta David T. Herbert. Geography: A Very Short Introduction. Oxford University Press, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.