Παραπομπή APA

Ritchie, J. R. B. C. (2003). Competitive destination: A sustainable tourism perspective.

Παραπομπή Chicago Style

Ritchie, J R Brent; Crouch. Competitive Destination: A Sustainable Tourism Perspective. CABI Publishing, 2003.

Παραπομπή MLA

Ritchie, J R Brent; Crouch. Competitive Destination: A Sustainable Tourism Perspective. 2003.