Schweingruber, F. H. (2007). Tree-ring chronology of Picea glauca (White spruce) compiled from tree samples DONJEK. PANGAEA.
Chicago-Zitierstil (17. Ausg.)Schweingruber, Fritz Hans. Tree-ring Chronology of Picea Glauca (White Spruce) Compiled from Tree Samples DONJEK. PANGAEA, 2007.
MLA-Zitierstil (9. Ausg.)Schweingruber, Fritz Hans. Tree-ring Chronology of Picea Glauca (White Spruce) Compiled from Tree Samples DONJEK. PANGAEA, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.