Schweingruber, F. H., & Lamprecht, A. (2007). Tree-ring measurements of Picea abies (Norway spruce) from sample NIEDERTHAI-34121. PANGAEA.
Citazione stile Chigago Style (17a edizione)Schweingruber, Fritz Hans, e A. Lamprecht. Tree-ring Measurements of Picea Abies (Norway Spruce) from Sample NIEDERTHAI-34121. PANGAEA, 2007.
Citatione MLA (9a ed.)Schweingruber, Fritz Hans, e A. Lamprecht. Tree-ring Measurements of Picea Abies (Norway Spruce) from Sample NIEDERTHAI-34121. PANGAEA, 2007.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.