APA (7th ed.) Citation

Galle, F. C. (1997). Hollies: The genus Ilex. Timber Press.

Chicago Style (17th ed.) Citation

Galle, Fred C. Hollies: The Genus Ilex. Portland, Or.: Timber Press, 1997.

MLA (9th ed.) Citation

Galle, Fred C. Hollies: The Genus Ilex. Timber Press, 1997.

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