Cita APA (7a ed.)

Schweingruber, F. H., & Ziegler, R. (2007). Tree-ring measurements of Pinus balfouriana (Foxtail pine) from sample GUNISPBA-291. PANGAEA.

Cita Chicago Style (17a ed.)

Schweingruber, Fritz Hans, y Ruth Ziegler. Tree-ring Measurements of Pinus Balfouriana (Foxtail Pine) from Sample GUNISPBA-291. PANGAEA, 2007.

Cita MLA (9a ed.)

Schweingruber, Fritz Hans, y Ruth Ziegler. Tree-ring Measurements of Pinus Balfouriana (Foxtail Pine) from Sample GUNISPBA-291. PANGAEA, 2007.