Cita APA (7a ed.)

Heywood, V. H. (1967). Plant taxonomy (1st edition.). Edward Arnold.

Cita Chicago Style (17a ed.)

Heywood, V. H. Plant Taxonomy. 1st edition. London: Edward Arnold, 1967.

Cita MLA (8a ed.)

Heywood, V. H. Plant Taxonomy. 1st edition. Edward Arnold, 1967.