9780395467299, titled "A Field Guide to Western Trees: Western United States and Canada" | Houghton Mifflin, March 1, 1992, cover price $18.00 | also contains A Field Guide to Western Trees: Western United States and Canada | About this edition: Identifies more than four hundred species of trees found in the western United States and Canada

9780060849818 | 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.

9780395904541 | Subsequent edition (Houghton Mifflin, July 25, 1998), cover price $20.00

9780395467305 | Houghton Mifflin, March 1, 1992, cover price $24.95 | About this edition: Identifies more than four hundred species of trees found in the western United States and Canada

9780395467299 | Houghton Mifflin, March 1, 1992, cover price $18.00 | also contains The Elvenbane | About this edition: Identifies more than four hundred species of trees found in the western United States and Canada

9780394748528 | Alfred a Knopf Inc, January 1, 1987, cover price $10.95 | About this edition: A guide containing full-color photographs, close-ups of barks, silhouettes, and comprehensive information on eighty species of trees that are located in the western region of North America, arranged by leaf and shape