APA ציטוט

Izesstia, Journal of the Union of Scientists - Varna, Economic Sciences Series. Union of Scientists - Varna.

Chicago Style (17th ed.) Citation

Izesstia, Journal of the Union of Scientists - Varna, Economic Sciences Series. Union of Scientists - Varna.

ציטוט MLA

Izesstia, Journal of the Union of Scientists - Varna, Economic Sciences Series. Union of Scientists - Varna.