APA (7th ed.) Citation

Nijkamp, P., & Κοκκώσης, Χ. (1995). Sustainable tourism development. Avebury.

Chicago Style (17th ed.) Citation

Nijkamp, Peter, and Χαράλαμπος Κοκκώσης. Sustainable Tourism Development. Aldershot: Avebury, 1995.

MLA (9th ed.) Citation

Nijkamp, Peter, and Χαράλαμπος Κοκκώσης. Sustainable Tourism Development. Avebury, 1995.