APA (7th ed.) Citation

McGregor, M. (2008). Saxifrages: A definitive guide to the 2000 species, hybrids & cultivars. Timber Press.

Chicago Style (17th ed.) Citation

McGregor, Malcolm. Saxifrages: A Definitive Guide to the 2000 Species, Hybrids & Cultivars. Portland [a. o.]: Timber Press, 2008.

MLA (8th ed.) Citation

McGregor, Malcolm. Saxifrages: A Definitive Guide to the 2000 Species, Hybrids & Cultivars. Timber Press, 2008.

Warning: These citations may not always be 100% accurate.