| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Biology: Living Systems | 978-0-02-826347-2 (0-02-826347-2) | 1998 |
| Biology Living Systems | 978-0-675-06484-2 (0-675-06484-8) | 1989 |
R.B. Oram · R N Oram · Rae Orion · Raymond F. Oram · Raymond Oram · Rhea Orion · Richard D. Oram · Richard Oram · Richard W. Oram · Robert Bruce Oram · Robin And Oram, Elizabeth Baker