APA (7th ed.) Zitazioa

Bleyer, H. (2007). Tree-ring width of Picea abies (Karsten) from historical object sample IB22531-5. PANGAEA.

Chicago Style (17th ed.) Zitazioa

Bleyer, Hans-Jürgen. Tree-ring Width of Picea Abies (Karsten) from Historical Object Sample IB22531-5. PANGAEA, 2007.

MLA (9th ed.) Zitazioa

Bleyer, Hans-Jürgen. Tree-ring Width of Picea Abies (Karsten) from Historical Object Sample IB22531-5. PANGAEA, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.