Sievers, M., Haftendorn, K., & Bessler, A. (2003). Business centres for small enterprise development: Experiences and lessons from Eastern Europe. International Labour Organization.
Chicago-Zitierstil (17. Ausg.)Sievers, Mertens, Klaus Haftendorn, und Astrid Bessler. Business Centres for Small Enterprise Development: Experiences and Lessons from Eastern Europe. International Labour Organization, 2003.
MLA-Zitierstil (9. Ausg.)Sievers, Mertens, et al. Business Centres for Small Enterprise Development: Experiences and Lessons from Eastern Europe. International Labour Organization, 2003.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.