APA (7th ed.) Citation

SpringerLink (Online service), Fet, V., & Popov, A. (2007). Biogeography and Ecology of Bulgaria. Springer Netherlands.

Chicago Style (17th ed.) Citation

SpringerLink (Online service), Victor Fet, and Alexi Popov. Biogeography and Ecology of Bulgaria. Dordrecht: Springer Netherlands, 2007.

MLA (8th ed.) Citation

SpringerLink (Online service), et al. Biogeography and Ecology of Bulgaria. Springer Netherlands, 2007.

Warning: These citations may not always be 100% accurate.