| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Aikido Student Handbook: A Guide to the Philosophy, Spirit, Etiquette and Training Methods of Aikido | 978-1-883319-O4-5 (1-883319-O4-8) | 1993 | Greg O'Connor |
G. C. · G.O. · **O.C.** · O'Connor