Bleyer, H. (2007). Tree-ring width of Pinus sylvestris (von Linné) from historical object sample IB22528-9. PANGAEA.
Citazione stile Chigago Style (17a edizione)Bleyer, Hans-Jürgen. Tree-ring Width of Pinus Sylvestris (von Linné) from Historical Object Sample IB22528-9. PANGAEA, 2007.
Citatione MLA (9a ed.)Bleyer, Hans-Jürgen. Tree-ring Width of Pinus Sylvestris (von Linné) from Historical Object Sample IB22528-9. PANGAEA, 2007.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.