एपीए उद्धरण

Heywood, V. H. (1971). biology and chemistry of Umbelliferae. Academic Press.

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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