Krupnik, I., Lang, M. A., & Miller, S. E. (2009). Smithsonian at the Poles: Contribution to International Polar Year Science. Smithsonian Institution Scholarly Press.
Citazione stile Chigago Style (17a edizione)Krupnik, Igor, Michael A. Lang, e Scott E. Miller. Smithsonian at the Poles: Contribution to International Polar Year Science. Washington, D.C: Smithsonian Institution Scholarly Press, 2009.
Citatione MLA (9a ed.)Krupnik, Igor, et al. Smithsonian at the Poles: Contribution to International Polar Year Science. Smithsonian Institution Scholarly Press, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.