APA (7th ed.) Citation

Moore, D. M. (1992). The Guinness guide to plants of the world. Guinness Pub.

Chicago Style (17th ed.) Citation

Moore, D. M. The Guinness Guide to Plants of the World. Enfield, Middlesex: Guinness Pub, 1992.

MLA (9th ed.) Citation

Moore, D. M. The Guinness Guide to Plants of the World. Guinness Pub, 1992.