APA (7 ম সংস্করণ) উদ্ধৃতি

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

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

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