APA aipamena

SpringerLink (Online service) & Zhelezov, G. (2011). Sustainable development in mountain regions: Southeastern Europe. Springer Science+Business.

Chicago Style aipamena

SpringerLink (Online service) and Georgi Zhelezov. Sustainable Development in Mountain Regions: Southeastern Europe. Dordrecht: Springer Science+Business, 2011.

MLA aipamena

SpringerLink (Online service) and Georgi Zhelezov. Sustainable Development in Mountain Regions: Southeastern Europe. Springer Science+Business, 2011.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.