9780394748511 | Alfred a Knopf Inc, April 1, 1987, cover price $11.95 | About this edition: A portable, comprehensive field guide--brimming with concise descriptions and stunning color photographs, and designed to fit into your back pocket--from the go-to reference source for over 18 million nature lovers.

9780395904558 | Rev sub edition (Houghton Mifflin, July 15, 1998), cover price $20.00 | About this edition: Identifies more than 400 species of trees found in the eastern United States and Canada

9780618300372 | Revised edition (Houghton Mifflin, July 1, 1998), cover price $19.00

9780811728119 | Rev sub edition (Stackpole Books, May 1, 2001), cover price $29.95 | About this edition: Drawings and detailed descriptions help in the identification of various species of trees commonly found in North America.

9780060890636 | 1 edition (Perennial, April 1, 2007), cover price $12.95 | About this edition: A pair of regional nature guides provide a compact, richly illustrated overview of the trees and shrubs of North America, covering hundreds of species found in the Eastern and Western sections of the country and incorporating detailed descriptions, identification keys, full-color photographs, information on habitat and life cycles, and close-ups of leaves, blossoms, bark, fruit, cones, and more.