| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| International map of gas transmission networks in Europe =: Atlas international des réseaux de transport de gaz en Europe = Mezhdunarodnyǐ atlas seti transporta gaza v Evrope | 978-963-35O-OO6-4 (963-35O-OO6-O) | 1975 |