APA (7th ed.) Citation

Grey-Wilson, C. (1989). The genus Dionysia (1. publ.). Alpine Garden Soc.

Chicago Style (17th ed.) Citation

Grey-Wilson, Christopher. The Genus Dionysia. 1. publ. Woking: Alpine Garden Soc, 1989.

MLA (9th ed.) Citation

Grey-Wilson, Christopher. The Genus Dionysia. 1. publ. Alpine Garden Soc, 1989.