APA-referens

Heywood, V. H. (1971). Biology and chemistry of the umbelliferae. Academic Press.

Chicago-stil citat

Heywood, V. H. Biology and Chemistry of the Umbelliferae. Academic Press, 1971.

MLA-referens

Heywood, V. H. Biology and Chemistry of the Umbelliferae. Academic Press, 1971.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.