Spurk, M., Friedrich, M., & Hofmann, J. (2005). Compiled ring width chronology of trees from upper Main Valley and lower Regnitz Valley, Bamberg, Germany. PANGAEA.
Citazione stile Chigago Style (17a edizione)Spurk, Marco, Michael Friedrich, e Jutta Hofmann. Compiled Ring Width Chronology of Trees from Upper Main Valley and Lower Regnitz Valley, Bamberg, Germany. PANGAEA, 2005.
Citatione MLA (9a ed.)Spurk, Marco, et al. Compiled Ring Width Chronology of Trees from Upper Main Valley and Lower Regnitz Valley, Bamberg, Germany. PANGAEA, 2005.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.