APA (7th ed.) Citation

Morrison, A., & Pridgeon, A. M. (1992). The illustrated encyclopedia of orchids. Timber Press.

Chicago Style (17th ed.) Citation

Morrison, Alasdair, and Alec M. Pridgeon. The Illustrated Encyclopedia of Orchids. Portland, Oregon: Timber Press, 1992.

MLA (8th ed.) Citation

Morrison, Alasdair, and Alec M. Pridgeon. The Illustrated Encyclopedia of Orchids. Timber Press, 1992.