APA (7th ed.) Citation

Delforge, P., & Harrap, S. (2006). Orchids of Europe, North Africa and the Middle East (3rd ed., rev.). A&C Black.

Chicago Style (17th ed.) Citation

Delforge, Pierre, and Simon Harrap. Orchids of Europe, North Africa and the Middle East. 3rd ed., rev. London: A&C Black, 2006.

MLA (8th ed.) Citation

Delforge, Pierre, and Simon Harrap. Orchids of Europe, North Africa and the Middle East. 3rd ed., rev. A&C Black, 2006.