International Labour Office, Skills and Employability Department. (2011). Skills and occupational needs in renewable energy. International Labour Office.
Chicago-Zitierstil (17. Ausg.)International Labour Office, Skills and Employability Department. Skills and Occupational Needs in Renewable Energy. Geneva: International Labour Office, 2011.
MLA-Zitierstil (9. Ausg.)International Labour Office, Skills and Employability Department. Skills and Occupational Needs in Renewable Energy. International Labour Office, 2011.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.