APA Edition Citation

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

Chicago Edition Citation

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

MLA Edition Citation

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

Warning: These citations may not always be 100% accurate.