Paula S. Rothenberg ©2014 | Ninth Edition ISBN-13: 9781429242172
Paula S. Rothenberg ©2010 | Eighth Edition ISBN-13: 9781429217880
Paula S. Rothenberg ©2006 | First Edition ISBN-13: 9780716773894
Kathryn Farr, Portland State University (emerita) ©2006 | First Edition ISBN-13: 9780716755487