Lua APA (7ú heag.)

Kukkola, E. (1999). Effects of copper and nickel on subarctic Scots pine needles. Oulun yliopisto.

Lua i Stíl Chicago (17ú heag.)

Kukkola, Eija. Effects of Copper and Nickel on Subarctic Scots Pine Needles. Oulu: Oulun yliopisto, 1999.

Lua MLA (8ú heag.)

Kukkola, Eija. Effects of Copper and Nickel on Subarctic Scots Pine Needles. Oulun yliopisto, 1999.

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