Berenguer Alonso, M. 1. (1994). Prehistoric cave art in northern Spain Asturias. Eujoa.
Cita Chicago Style (17a ed.)Berenguer Alonso, Magin 1918. Prehistoric Cave Art in Northern Spain Asturias. España: Eujoa, 1994.
Cita MLA (9a ed.)Berenguer Alonso, Magin 1918. Prehistoric Cave Art in Northern Spain Asturias. Eujoa, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.