| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Outline of international finance: exchange rates and payments between countries | 978-0-470-79325-1 (0-470-79325-2) | 1974 |
| Outline of international trade: commodity flows and division of production between countries | 978-0-470-79326-8 (0-470-79326-0) | 1974 |