A buyers guide to bulbs : What gardeners can do to protect threatened species / Christopher S. Robbins -- Bulbous botany / Steven E. Clemants -- Year-round care of summer bulbs / Becky and Brent Heath -- Naturalizing summer-blooming bulbs / Becky and Brent Heath --Growing summer bloomers in containers / Tovah Martin -- Pests and diseases of bulbs / Jackie Fazio -- Encyclopedia of summer-blooming bulbs / C. Colston Burrell...[et al]