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