1
Julkaistu 1988
“...Commission of the European Communities. Directorate-General for Energy....”
Kirja
2
Julkaistu 1988
“...Commission of the European Communities. Directorate-General for Energy....”
Kirja
3
Julkaistu 1990
“...Commission of the European Communities. Directorate-General for Energy....”
Kirja
4
Julkaistu 1987
“...Commission of the European Communities. Directorate-General for Energy....”
Kirja
5
Julkaistu 1987
“...Commission of the European Communities. Directorate-General for Energy....”
Kirja
6
Julkaistu 1989
“...Commission of the European Communities. Directorate-General for Energy....”
Kirja