APA (7th ed.) Citation

Grey-Wilson, C. (2000). Clematis, the genus: A comprehensive guide for gardeners, horticulturists and botanists. Timber Press.

Chicago Style (17th ed.) Citation

Grey-Wilson, Christopher. Clematis, the Genus: A Comprehensive Guide for Gardeners, Horticulturists and Botanists. Portland, Or.: Timber Press, 2000.

MLA (9th ed.) Citation

Grey-Wilson, Christopher. Clematis, the Genus: A Comprehensive Guide for Gardeners, Horticulturists and Botanists. Timber Press, 2000.