Kallio, P., Rosswall, T., & Wielgolaski, F. E. (1975). Fennoscandian tundra ecosystems. Springer-Verlag.
Lua i Stíl Chicago (17ú heag.)Kallio, Paavo, T. Rosswall, agus F. E. Wielgolaski. Fennoscandian Tundra Ecosystems. Berlin: Springer-Verlag, 1975.
Lua MLA (9ú heag.)Kallio, Paavo, et al. Fennoscandian Tundra Ecosystems. Springer-Verlag, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.