Heywood, V. H. (1971). biology and chemistry of Umbelliferae. Academic Press.
Chicago-stil citatHeywood, V H. Biology and Chemistry of Umbelliferae. London: Academic Press, 1971.
MLA-referensHeywood, V H. Biology and Chemistry of Umbelliferae. Academic Press, 1971.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.