**O.C.** · O'Callaghan · R. C. · Ramón OCallaghan
| title | media type | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|---|
| EDI in Europe: How It Works in Practice | Hardcover | 978-0-471-95354-8 | 1995 | Helmut Krcmar · Niels Bjørn-Andersen · Ramón O'Callaghan |
| Transforming Enterprise: The Economic and Social Implications of Information Technology | " | 978-0-262-04221-5 | 2004 | William H. Dutton · Brian Kahin · Ramon O'Callaghan · Andrew W. Wyckoff |
| Transforming Enterprise: The Economic and Social Implications of Information Technology | Printed Access Code | 978-0-262-27207-0 | 2004 | William H. Dutton · Brian Kahin · Ramon O'Callaghan · Andrew W. Wyckoff |
| Transforming Enterprise: The Economic and Social Implications of Information Technology | Paperback | 978-0-262-54177-0 | 2004 | William H. Dutton · Brian Kahin · Ramon O'Callaghan · Andrew W. Wyckoff |