| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Electronic Payment Systems for E-Commerce | Unbound | 978-1-58053-463-5 (1-58053-463-5) | 2002 | Donald O'Mahony · Michael Peirce |
| Electronic Payment Systems for E-Commerce | Hardcover | 978-1-58053-268-6 (1-58053-268-3) | 2001 | Donal O'Mahony · Michael A. Peirce · O'Mahony Donal |