Citazione Stile APA (7a Edizione)

Schweingruber, F. H., & Brunner, M. (2007). Tree-ring measurements of Picea sitchensis (Sitka spruce) from sample MOOSE-111. PANGAEA.

Citazione stile Chigago Style (17a edizione)

Schweingruber, Fritz Hans, e Margrit Brunner. Tree-ring Measurements of Picea Sitchensis (Sitka Spruce) from Sample MOOSE-111. PANGAEA, 2007.

Citatione MLA (9a ed.)

Schweingruber, Fritz Hans, e Margrit Brunner. Tree-ring Measurements of Picea Sitchensis (Sitka Spruce) from Sample MOOSE-111. PANGAEA, 2007.