Não informado. (2008). Publications from the Department of Botany, University of Helsinki. University of Helsinki.
Chicago-referens (17:e uppl.)Não informado. Publications from the Department of Botany, University of Helsinki. Helsinki: University of Helsinki, 2008.
MLA-referens (8:e uppl.)Não informado. Publications from the Department of Botany, University of Helsinki. University of Helsinki, 2008.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.