Шиваров, А. Diversity in Bulgarian Foreign Trade (2007 - 2013). Varna: Union of Scientists - Varna, 2014 pp. 63-71, ISSN 1314-7390 (print) ; 2603-4085 (online).
Шиваров, А. Diversity in Bulgarian Foreign Trade (2007 - 2013). Varna: Union of Scientists - Varna, 2014 pp. 63-71, ISSN 1314-7390 (print) ; 2603-4085 (online).
Шиваров, А. (2014) Diversity in Bulgarian Foreign Trade (2007 - 2013), Varna: Union of Scientists - Varna pp. 63-71, ISSN 1314-7390 (print) ; 2603-4085 (online).
Шиваров, А. (2014). Diversity in Bulgarian Foreign Trade (2007 - 2013). Varna: Union of Scientists - Varna, pp. 63-71.
Шиваров А. Diversity in Bulgarian Foreign Trade (2007 - 2013). Varna: Union of Scientists - Varna; 2014. p. pp. 63-71. ISBN: ISSN 1314-7390 (print) ; 2603-4085 (online).
