**O.C.** · Orion Research · R. C. · Research Corporation
Orion Research Corp · UMI Books on Demand
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Computer Buyers Guide, 1985 | 978-0-318-03744-8 (0-318-03744-0) | 1985 |
| Orion Blue Book: Audio 1999 | 978-0-932089-93-9 (0-932089-93-3) | 1998 |