Journal of the Bulgarian Geographical Society. Bulgarian Geographical Society ; Pensoft.
Chicago-čujuhus (17. p.)Journal of the Bulgarian Geographical Society. [S.l.]: Bulgarian Geographical Society ; Pensoft.
MLA-čujuhus (9. p.)Journal of the Bulgarian Geographical Society. Bulgarian Geographical Society ; Pensoft.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.