[en] Storey's Guide to Growing Organic Vegetables & Herbs for Market Storey Publishing, LLC
[en] The Path of Alchemy Llewellyn Publications
[en] [Gutenberg 27981] • The Plant Hunters: Adventures Among the Himalaya Mountains Fredonia Books
[en] [Gutenberg 22761] • Ideen zu einer Physiognomik der Gewächse Project Gutenberg
[en] [Gutenberg 5174] • Allan and the Holy Flower Wildside Press
[en] [Gutenberg 53619] • A Flower Wedding / Described by Two Wallflowers Victoria & Albert Museum
[de] [Gutenberg 46014] • Die Ägyptische Pflanzensäule Transcript
[en] [Five Past Midnight in Bhopal 01] • Five Past Midnight in Bhopal Grand Central Publishing
[en] The Nature Magpie Icon Books