Plants for Bees: A Guide to the Plants That Benefit the Bees of the British Isles
Native Plants of the Northeast: A Guide for Gardening and Conservation
Native Plants of the Northeast: A Guide for Gardening and Conservation by Donald J. Leopold (2005-02-01)
How to Prune an Apple Tree: A guide for real people with imperfect trees
Lilies: A Guide for Growers and Collectors
Cultivation of Geum Flowers: A Guide for Gardeners to Cultivate and Value Nut-Bearing Geum Flowers
