Schweingruber, F. H., & Brunner, M. (2007). Tree-ring measurements of Picea engelmannii (Engelmann spruce) from sample COTTON-112. PANGAEA.
Style de citation Chicago (17e éd.)Schweingruber, Fritz Hans, et Margrit Brunner. Tree-ring Measurements of Picea Engelmannii (Engelmann Spruce) from Sample COTTON-112. PANGAEA, 2007.
Style de citation MLA (9e éd.)Schweingruber, Fritz Hans, et Margrit Brunner. Tree-ring Measurements of Picea Engelmannii (Engelmann Spruce) from Sample COTTON-112. PANGAEA, 2007.
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