Cita APA (7th ed.)

Heywood, V. H. (1973). Taxonomy and ecology. Academic Press.

Cita Chicago (17th ed.)

Heywood, Vernon Hilton. Taxonomy and Ecology. Londres: Academic Press, 1973.

Cita MLA (9th ed.)

Heywood, Vernon Hilton. Taxonomy and Ecology. Academic Press, 1973.