APA Edition Citation

Houghton, P. J. (2012). Valerian: The genus Valeriana. CRC Press.

Chicago Edition Citation

Houghton, Peter J. Valerian: The Genus Valeriana. Boca Raton: CRC Press, 2012.

MLA Edition Citation

Houghton, Peter J. Valerian: The Genus Valeriana. CRC Press, 2012.

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