APA-Zitierstil (7. Ausg.)

(2011). Common guidelines for contributing to the European Commission: Green paper on public procurement ; PES discussion paper ([Electronic ed.].).

Chicago-Zitierstil (17. Ausg.)

Common Guidelines for Contributing to the European Commission: Green Paper on Public Procurement ; PES Discussion Paper. [Electronic ed.]. Brussels, 2011.

MLA-Zitierstil (9. Ausg.)

Common Guidelines for Contributing to the European Commission: Green Paper on Public Procurement ; PES Discussion Paper. [Electronic ed.]. 2011.