APA
Persson Å., . (1961). Mire and spring vegetation in an area north of lake Torneträsk, Torne lappmark, Sweden. Stockholm: A&W.
Chicago
Persson Åke, . 1961. Mire and spring vegetation in an area north of lake Torneträsk, Torne lappmark, Sweden. Stockholm: A&W.
Harvard
Persson Å., . (1961). Mire and spring vegetation in an area north of lake Torneträsk, Torne lappmark, Sweden. Stockholm: A&W.
MLA
Persson Åke, . Mire and spring vegetation in an area north of lake Torneträsk, Torne lappmark, Sweden. Stockholm: A&W. 1961.