Ilieva, G. Assessment of the German Tourist for the Competitiveness of Varna Destination. Херсон - Варна: ПП Вишемирский В. С., 2014 pp. 246-251, ISBN 978-966-8912-94-8.
Ilieva, G. Assessment of the German Tourist for the Competitiveness of Varna Destination. Херсон - Варна: ПП Вишемирский В. С., 2014 pp. 246-251, ISBN 978-966-8912-94-8.
Ilieva, G. (2014) Assessment of the German Tourist for the Competitiveness of Varna Destination, Херсон - Варна: ПП Вишемирский В. С. pp. 246-251, ISBN 978-966-8912-94-8.
Ilieva, G. (2014). Assessment of the German Tourist for the Competitiveness of Varna Destination. Херсон - Варна: ПП Вишемирский В. С., pp. 246-251.
Ilieva G. Assessment of the German Tourist for the Competitiveness of Varna Destination. Херсон - Варна: ПП Вишемирский В. С.; 2014. p. pp. 246-251. ISBN: ISBN 978-966-8912-94-8.