Tohutoro APA (7th ed.)

Institut za gorata (B ulgarska akademi i a na naukite). (2001). Silva Balcanica. Forest Research Institute - Bulgarian Academy of Sciences (FRI-BAS).

Tohutoru Kātū Chicago

Institut za gorata (B ulgarska akademi i a na naukite). Silva Balcanica. Sofia, Bulgaria: Forest Research Institute - Bulgarian Academy of Sciences (FRI-BAS), 2001.

Tohutoro MLA

Institut za gorata (B ulgarska akademi i a na naukite). Silva Balcanica. Forest Research Institute - Bulgarian Academy of Sciences (FRI-BAS), 2001.