Schweingruber, F. H., & Ziegler, R. (2007). Tree-ring measurements of Picea mariana (Black spruce) from sample SCHEFPMA-132. PANGAEA.
Style de citation Chicago (17e éd.)Schweingruber, Fritz Hans, et Ruth Ziegler. Tree-ring Measurements of Picea Mariana (Black Spruce) from Sample SCHEFPMA-132. PANGAEA, 2007.
Style de citation MLA (9e éd.)Schweingruber, Fritz Hans, et Ruth Ziegler. Tree-ring Measurements of Picea Mariana (Black Spruce) from Sample SCHEFPMA-132. PANGAEA, 2007.
Attention : ces citations peuvent ne pas être correctes à 100%.