APA (7th ed.) Citation

Snoeijer, W. (2004). Agapanthus: A revision of the genus. Timber Press.

Chicago Style (17th ed.) Citation

Snoeijer, Wim. Agapanthus: A Revision of the Genus. Portland: Timber Press, 2004.

MLA (9th ed.) Citation

Snoeijer, Wim. Agapanthus: A Revision of the Genus. Timber Press, 2004.

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