| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| Shipping Conferences: A Study of their Origins Development and Economic Practices | Hardcover | 978-0-521-08734-6 (0-521-08734-1) | 1973 |
| Shipping Conferences: A Study of their Origins Development and Economic Practices | Paperback | 978-0-521-09742-0 (0-521-09742-8) | 1973 |