| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Pay-Per-Click Search Engine Marketing: An Hour a Day | 978-O-47O-48867-6 (O-47O-48867-O) | 2010 | David Szetela |
J.K · Jacob Krekhovetsky · Josef Kirschbichler · JOSEPH KERSCHBAUM DAVID SZETELA · Joseph Krauskopf