Bleyer, H. (2007). Tree-ring width of Abies alba (Miller) from historical object sample IB22474-11. PANGAEA.
Citazione stile Chigago Style (17a edizione)Bleyer, Hans-Jürgen. Tree-ring Width of Abies Alba (Miller) from Historical Object Sample IB22474-11. PANGAEA, 2007.
Citatione MLA (9a ed.)Bleyer, Hans-Jürgen. Tree-ring Width of Abies Alba (Miller) from Historical Object Sample IB22474-11. PANGAEA, 2007.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.