APA aipamena

Graute,Ulrich. Sustainable development for central and eastern Europe. Springer Verlag.

Chicago Style aipamena

Graute,Ulrich. Sustainable Development for Central and Eastern Europe. Berlin: Springer Verlag.

MLA aipamena

Graute,Ulrich. Sustainable Development for Central and Eastern Europe. Springer Verlag.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.