APA (7th ed.) Citation

Kostakou, A. (1998). The Leaders: Workbook intermediate level (2η έκδ.). Hillside Press.

Chicago Style (17th ed.) Citation

Kostakou, A. The Leaders: Workbook Intermediate Level. 2η έκδ. Athens: Hillside Press, 1998.

MLA (9th ed.) Citation

Kostakou, A. The Leaders: Workbook Intermediate Level. 2η έκδ. Hillside Press, 1998.