APA (7th ed.) Citation

Speichert, C. G., & Speichert, S. (2004). Encyclopedia of water garden plants. Timber Press.

Chicago Style (17th ed.) Citation

Speichert, C. Greg, and Sue Speichert. Encyclopedia of Water Garden Plants. Portland: Timber Press, 2004.

MLA (9th ed.) Citation

Speichert, C. Greg, and Sue Speichert. Encyclopedia of Water Garden Plants. Timber Press, 2004.