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by HERRERAPaperback 
 
 
 ISBN: 978-0-13-182715-8 ISBN-10: 0-13-182715-4 Pearson Education ESL · 2004  | 
| See also: | ||
| 2004 | Paperback | Backpack, Level 2 Workbook | 
| 2004 | Paperback | Backpack, Level 3 Workbook (Bk. 3) | 
| 2004 | Paperback | Backpack, Level 1 Workbook (Bk. 1) |