Cita APA (7th ed.)

Ryan, C., Page, S. J., & Aicken, M. (2005). Taking tourism to the limits: Issues, concepts and managerial perspectives. Elsevier.

Cita Chicago (17th ed.)

Ryan, Chris, Stephen J. Page, i Michelle Aicken. Taking Tourism to the Limits: Issues, Concepts and Managerial Perspectives. Amsterdam: Elsevier, 2005.

Cita MLA (8th ed.)

Ryan, Chris, et al. Taking Tourism to the Limits: Issues, Concepts and Managerial Perspectives. Elsevier, 2005.