Cita APA (7a ed.)

Schweingruber, F. H. (2007). Tree-ring measurements of Picea obovata (Sibirean spruce) from sample KOTUJUPC-291. PANGAEA.

Cita Chicago Style (17a ed.)

Schweingruber, Fritz Hans. Tree-ring Measurements of Picea Obovata (Sibirean Spruce) from Sample KOTUJUPC-291. PANGAEA, 2007.

Cita MLA (9a ed.)

Schweingruber, Fritz Hans. Tree-ring Measurements of Picea Obovata (Sibirean Spruce) from Sample KOTUJUPC-291. PANGAEA, 2007.