Lua APA (7ú heag.)

Jalkanen, R. (1995). Needle trace method (NTM) for retrospective needle retention studies on scots pine (Pinus sylvestris L.). Oulun yliopisto.

Lua i Stíl Chicago (17ú heag.)

Jalkanen, Risto. Needle Trace Method (NTM) for Retrospective Needle Retention Studies on Scots Pine (Pinus Sylvestris L.). Oulu: Oulun yliopisto, 1995.

Lua MLA (8ú heag.)

Jalkanen, Risto. Needle Trace Method (NTM) for Retrospective Needle Retention Studies on Scots Pine (Pinus Sylvestris L.). Oulun yliopisto, 1995.

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