Charmas, M. (1991). Polar session - Arctic environment research, Lublin, Poland - April 1991. UMCS.
Style de citation Chicago (17e éd.)Charmas, Maria. Polar Session - Arctic Environment Research, Lublin, Poland - April 1991. Lublin: UMCS, 1991.
Style de citation MLA (9e éd.)Charmas, Maria. Polar Session - Arctic Environment Research, Lublin, Poland - April 1991. UMCS, 1991.
Attention : ces citations peuvent ne pas être correctes à 100%.