APA-Zitierstil (7. Ausg.)

Belev, B. (2003). The informal economy in the EU accession countries: Size, scope, trends and challenges to the process of EU enlargement. Center for the Study of Democracy.

Chicago-Zitierstil (17. Ausg.)

Belev, Boyan. The Informal Economy in the EU Accession Countries: Size, Scope, Trends and Challenges to the Process of EU Enlargement. Sofia: Center for the Study of Democracy, 2003.

MLA-Zitierstil (9. Ausg.)

Belev, Boyan. The Informal Economy in the EU Accession Countries: Size, Scope, Trends and Challenges to the Process of EU Enlargement. Center for the Study of Democracy, 2003.