MLA

Gashi, Ahmet. Shqipëria Etnike = Ethnic Albania / Sipas Prof. Ahmet Gashi. s.n., 1998. https://collections.library.yale.edu/catalog/15498833.

APA, 6th edition

Gashi, A. (1998). Shqipëria etnike = Ethnic Albania / sipas Prof. Ahmet Gashi. [Maps]. s.n., https://collections.library.yale.edu/catalog/15498833.