| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Coal quality and ash characteristics: A study | 978-92-64-12684-8 (92-64-12684-8) | 1985 |
| Coal Use and the Environment | 978-92-64-12422-6 (92-64-12422-5) | 1983 |
| The use of coal in industry: Report | 978-92-64-12308-3 (92-64-12308-3) | 1982 |