Helmers Pub · Trafford Publishing
| title | ISBN-13 | year of publication |
|---|---|---|
| The Bar Code Book: Comprehensive Guide to Reading, Printing, Specifying, and Applying Bar Code and Other Machine-Readable Symbols | 978-0-911261-13-4 | 2001 |
| The Bar Code Book: Fifth Edition - A Comprehensive Guide To Reading, Printing, Specifying, Evaluating, And Using Bar Code and Other Machine-Readable Symbols | 978-1-4251-3374-0 | 2007 |
| The Bar Code Book: Reading, Printing, and Specification of Bar Code Symbols | 978-0-911261-09-7 | 1995 |
| The Bar Code Book: Reading, Printing, and Specification of Bar Code Symbols | 978-0-911261-05-9 | 1991 |
C.P. · C. Palmer · R. C. · R. P. · R. Palmer · Roger C. · Roger C. Palmer PhD · Roger Palmer