Cita APA (7th ed.)

Heywood, V. H. (1976). Plant taxonomy (2nd ed.). Edward Arnold.

Cita Chicago (17th ed.)

Heywood, V. H. Plant Taxonomy. 2nd ed. London: Edward Arnold, 1976.

Cita MLA (9th ed.)

Heywood, V. H. Plant Taxonomy. 2nd ed. Edward Arnold, 1976.