| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Snorkel Bob's Underwater and Get Down Underground Guide to Oahu | 978-1-881334-24-8 (1-881334-24-4) | 1990 |
m r · Mathieu Ruffenach · Matt Robinson · Matt Rubenstein · Matt Rubinstein · Matthew Robbins · Matthew Robinson · Maude Robinson · MD Ravnskov