SpringerLink (Online service), Alexandrov, V., Gajdusek, M. F., Knight, C. G., & Yotova, A. (2010). Global Environmental Change: Challenges to Science and Society in Southeastern Europe: Selected Papers presented in the International Conference held 19-21 May 2008 in Sofia Bulgaria. Springer Netherlands : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Vesselin Alexandrov, Martin Felix Gajdusek, C. Gregory Knight, και Antoaneta Yotova. Global Environmental Change: Challenges to Science and Society in Southeastern Europe: Selected Papers Presented in the International Conference Held 19-21 May 2008 in Sofia Bulgaria. Dordrecht: Springer Netherlands : Imprint: Springer, 2010.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Global Environmental Change: Challenges to Science and Society in Southeastern Europe: Selected Papers Presented in the International Conference Held 19-21 May 2008 in Sofia Bulgaria. Springer Netherlands : Imprint: Springer, 2010.
