Annals of the University of Bucharest: Geography Series | University of Bucharest. Cambridge University Press.
Chicago Style (17th ed.) ZitazioaAnnals of the University of Bucharest: Geography Series | University of Bucharest. Cambridge University Press.
MLA (9th ed.) ZitazioaAnnals of the University of Bucharest: Geography Series | University of Bucharest. Cambridge University Press.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.