Cita APA (7a ed.)

Schweingruber, F. H. (2007). Tree-ring measurements of Picea abies (Norway spruce) from sample BWN_FI-252. PANGAEA.

Cita Chicago Style (17a ed.)

Schweingruber, Fritz Hans. Tree-ring Measurements of Picea Abies (Norway Spruce) from Sample BWN_FI-252. PANGAEA, 2007.

Cita MLA (9a ed.)

Schweingruber, Fritz Hans. Tree-ring Measurements of Picea Abies (Norway Spruce) from Sample BWN_FI-252. PANGAEA, 2007.