Cita APA (7a ed.)

Friedrich, M. (2007). Tree-ring width of Picea abies (Karsten) from historical object sample HOH4827-2. PANGAEA.

Cita Chicago Style (17a ed.)

Friedrich, Michael. Tree-ring Width of Picea Abies (Karsten) from Historical Object Sample HOH4827-2. PANGAEA, 2007.

Cita MLA (9a ed.)

Friedrich, Michael. Tree-ring Width of Picea Abies (Karsten) from Historical Object Sample HOH4827-2. PANGAEA, 2007.