Matthews, H. (1989). Geographical data: Sources, presentation, and analysis. Oxford University Press.
Chicago Style aipamenaMatthews, Hugh. Geographical Data: Sources, Presentation, and Analysis. Oxford: Oxford University Press, 1989.
MLA aipamenaMatthews, Hugh. Geographical Data: Sources, Presentation, and Analysis. Oxford University Press, 1989.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.