Schweingruber, F. H., & Luder, R. (2007). Tree-ring measurements of Picea abies (Norway spruce) from sample CORT-N-120. PANGAEA.
Citazione stile Chigago Style (17a edizione)Schweingruber, Fritz Hans, e Rolf Luder. Tree-ring Measurements of Picea Abies (Norway Spruce) from Sample CORT-N-120. PANGAEA, 2007.
Citatione MLA (9a ed.)Schweingruber, Fritz Hans, e Rolf Luder. Tree-ring Measurements of Picea Abies (Norway Spruce) from Sample CORT-N-120. PANGAEA, 2007.
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