Não informado. (1960). Publications from the Department of Botany. University of Turku.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Publications from the Department of Botany. Turku, Finlandia: University of Turku, 1960.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Publications from the Department of Botany. University of Turku, 1960.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.