Comp Title Information:* Invasive Plants: 1st Edition, 9780811733656 Author: Sylvan Ramsey Kaufman & Wallace Kaufman $39.95,PB,Pub Date:2007 8,300 lifetime copies [B&T lifetime sales: 422]* Invasive and Introduced Plants and Animals, 9781849710718 Author: Ian D. Rotherham & Robert A. Lambert $99.95,HC,Pub Date:2011 B&T lifetime sales: 126