| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Maritime Transport, 1979 | 978-92-64-12122-5 (92-64-12122-6) | 1981 |
| Maritime Transport, 1981 | 978-92-64-12347-2 (92-64-12347-4) | 1982 |
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