APA (7th ed.) Citation

Allen, G. (1882). The colours of flowers as illustrated in the British flora. Macmillan and co..

Chicago Style (17th ed.) Citation

Allen, Grant. The Colours of Flowers as Illustrated in the British Flora. London: Macmillan and co., 1882.

MLA (9th ed.) Citation

Allen, Grant. The Colours of Flowers as Illustrated in the British Flora. Macmillan and co., 1882.