Παραπομπή σε μορφή APA (7η εκδ.)

Strietska-Ilina, O., & Tessaring, M. (2005). Trends and skill needs in tourism. Office for Official Publications of the European Communities.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Strietska-Ilina, Olga, και Manfred Tessaring. Trends and Skill Needs in Tourism. Luxembourg: Office for Official Publications of the European Communities, 2005.

Παραπομπή σε μορφή MLA (8th εκδ.)

Strietska-Ilina, Olga, και Manfred Tessaring. Trends and Skill Needs in Tourism. Office for Official Publications of the European Communities, 2005.