APA-viite (7. p.)

Zhelezov, G. (2011). Sustainable Development in Mountain Regions: Southeastern Europe. Springer Netherlands. https://doi.org/10.1007/978-94-007-0131-1

Chicago-viite (17. p.)

Zhelezov, Georgi. Sustainable Development in Mountain Regions: Southeastern Europe. Dordrecht: Springer Netherlands, 2011. https://doi.org/10.1007/978-94-007-0131-1.

MLA-viite (9. p.)

Zhelezov, Georgi. Sustainable Development in Mountain Regions: Southeastern Europe. Springer Netherlands, 2011. https://doi.org/10.1007/978-94-007-0131-1.