Παραπομπή σε μορφή APA (7η εκδ.)

Karlman, M. (1984). Pathogens and other threats to Pinus contorta in Northern Sweden. Dept. of Ecological Botany, University of Umeå.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Karlman, Margareta. Pathogens and Other Threats to Pinus Contorta in Northern Sweden. Umeå: Dept. of Ecological Botany, University of Umeå, 1984.

Παραπομπή σε μορφή MLA (8th εκδ.)

Karlman, Margareta. Pathogens and Other Threats to Pinus Contorta in Northern Sweden. Dept. of Ecological Botany, University of Umeå, 1984.