Schweingruber, F. H., & Keller, R. (2007). Tree-ring measurements of Picea obovata (Sibirean spruce) from sample NADIMPCO-41. PANGAEA.
Chicago Style (17th ed.) CitationSchweingruber, Fritz Hans, and Regula Keller. Tree-ring Measurements of Picea Obovata (Sibirean Spruce) from Sample NADIMPCO-41. PANGAEA, 2007.
MLA (9th ed.) CitationSchweingruber, Fritz Hans, and Regula Keller. Tree-ring Measurements of Picea Obovata (Sibirean Spruce) from Sample NADIMPCO-41. PANGAEA, 2007.
Warning: These citations may not always be 100% accurate.