| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Directory of Electric Utilities in Developing Regions: Africa, the Middle East, Asia, South America, Central America, the Caribbean | 978-0-07-606944-6 (0-07-606944-3) | 1986 |
| International Directory of Electric Utilities: Europe, Africa, the Middle East, Asia, South America, Central America, the Caribbean | 978-0-07-607059-6 (0-07-607059-X) | 1991 |