Sandars, N. K. (1968). Prehistoric art in Europe. Penguin Books.
Chicago Style (17th ed.) ZitazioaSandars, N. K. Prehistoric Art in Europe. Baltimore: Penguin Books, 1968.
MLA (9th ed.) ZitazioaSandars, N. K. Prehistoric Art in Europe. Penguin Books, 1968.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.