P.G. · Peter G. · Peter J. Gulia
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| 457 ANSWER BOOK 5E 2013 CUMULATIVE SUPPLEMENT | 978-1-4548-1019-3 (1-4548-1019-X) | 2012 | Gary Lesser · David Powell |
| 457 Answer Book 6th Edition 2017 Cumulative Supplement | 978-1-4548-7251-1 (1-4548-7251-9) | 2016 | Gary S. Lesser · David W. Powell |