Schweingruber, F. H., & Eimiger, M. (2007). Tree-ring measurements of Picea abies (Norway spruce) from sample SENJ-12. PANGAEA.
Cita Chicago Style (17a ed.)Schweingruber, Fritz Hans, y Moritz Eimiger. Tree-ring Measurements of Picea Abies (Norway Spruce) from Sample SENJ-12. PANGAEA, 2007.
Cita MLA (9a ed.)Schweingruber, Fritz Hans, y Moritz Eimiger. Tree-ring Measurements of Picea Abies (Norway Spruce) from Sample SENJ-12. PANGAEA, 2007.
Precaución: Estas citas no son 100% exactas.