The proto-Bulgarians :
pre-history of Asparouhian Bulgaria /
Vassil Gyuzelev ; [Yulia Stefanova, translation from the Bulgarian].
APA Citation
Gi︠u︡zelev, V. (1979). The proto-Bulgarians: pre-history of Asparouhian Bulgaria. [Sofia]: Sofia Press.
MLA Citation
Gi︠u︡zelev, Vasil. The Proto-Bulgarians: Pre-history of Asparouhian Bulgaria. [Sofia]: Sofia Press, 1979.
Warning: These citations may not always be complete (especially for serials).