Clark, G. (1994). Space, Time and Man: A Prehistorian's View. Cambridge University Press.
Chicago Style aipamenaClark, Grahame. Space, Time and Man: A Prehistorian's View. Cambridge: Cambridge University Press, 1994.
MLA aipamenaClark, Grahame. Space, Time and Man: A Prehistorian's View. Cambridge University Press, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.