Não informado. (1987). NEED: News environment energy development. Unit of Documentation and Liaison on Ecodevelopment.
Chicago-Zitierstil (17. Ausg.)Não informado. NEED: News Environment Energy Development. Paris: Unit of Documentation and Liaison on Ecodevelopment, 1987.
MLA-Zitierstil (8. Ausg.)Não informado. NEED: News Environment Energy Development. Unit of Documentation and Liaison on Ecodevelopment, 1987.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.