A to Z Perennials Inc

year of publication	ISBN	author(s)	title
2001	978-0-9679440-0-5	Mark R. Zilis	The Hosta Handbook
2009	978-0-9679440-1-2	Mark R Zilis	The Hostapedia: An Encyclopedia of Hostas
2014	978-0-9679440-2-9	Mark R. Zilis	Mark Zilis' Field Guide to Hostas