Cita APA (7a ed.)

Schweingruber, F. H., & Eimiger, M. (2007). Tree-ring measurements of Picea abies (Norway spruce) from sample NOVACI-61. PANGAEA.

Cita Chicago Style (17a ed.)

Schweingruber, Fritz Hans, y Moritz Eimiger. Tree-ring Measurements of Picea Abies (Norway Spruce) from Sample NOVACI-61. PANGAEA, 2007.

Cita MLA (9a ed.)

Schweingruber, Fritz Hans, y Moritz Eimiger. Tree-ring Measurements of Picea Abies (Norway Spruce) from Sample NOVACI-61. PANGAEA, 2007.