O.F. · R. F. · Richard F. · Richard O.
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Pioneering Venus: A Planet Unveiled | 978-0-9645537-1-2 (0-9645537-1-6) | 1995 | Lawrence Colin · Eric Burgess |
| Pioneer Venus: A Planet Unveiled | 978-0-9645537-0-5 (0-9645537-0-8) | 1995 | Lawrence Colin · Eric Burgess |