(2018). The shadows of the Nothern lights glow in the Scandinavian skies. Topos.
Čikaški stil citiranja (17. izdanje)"The Shadows of the Nothern Lights Glow in the Scandinavian Skies." Topos 2018.
MLA način citiranja (8. izdanje)"The Shadows of the Nothern Lights Glow in the Scandinavian Skies." Topos, 2018.
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