APA (7th ed.) Citation

Blackmore, S., & Tootill, E. (1984). The Penguin dictionary of botany. A. Lane.

Chicago Style (17th ed.) Citation

Blackmore, Stephen, and Elizabeth Tootill. The Penguin Dictionary of Botany. London: A. Lane, 1984.

MLA (9th ed.) Citation

Blackmore, Stephen, and Elizabeth Tootill. The Penguin Dictionary of Botany. A. Lane, 1984.