APA (7th ed.) Citation

Schweingruber, F. H. (2007). Tree-ring measurements of Picea engelmannii (Engelmann spruce) from sample SILVER-121. PANGAEA.

Chicago Style (17th ed.) Citation

Schweingruber, Fritz Hans. Tree-ring Measurements of Picea Engelmannii (Engelmann Spruce) from Sample SILVER-121. PANGAEA, 2007.

MLA (9th ed.) Citation

Schweingruber, Fritz Hans. Tree-ring Measurements of Picea Engelmannii (Engelmann Spruce) from Sample SILVER-121. PANGAEA, 2007.

Warning: These citations may not always be 100% accurate.