Susan Nolan; Thomas Heinzen ©2012 | Second Edition
Jeffery E. Aspelmeier; Thomas W. Pierce ©2011 |
Susan Nolan; Thomas Heinzen ©2011 | First Edition
Chava Frankfort-Nachmias ©2007 | Seventh Edition
Geoffrey Keppel, University of California, Berkeley; William H. Saufley, University of California, Berkeley; Howard Tokunaga, State University of California, San Jose ©1992 | Second Edition