| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Able Seaman and Lifeboatman, Book 1 | 978-1-879778-00-9 (1-879778-00-9) | 1991 |
| Limited Master Mate and Operator License and Study Course | 978-0-934114-89-9 (0-934114-89-7) | 1989 |
A. B. · A Block · R. A. · R. B. · R Block · Richard A. · Richard B. · Richard Block