APA aipamena

Walker, J. R., & Walker, J. T. (2011). Tourism: Concepts and practices. Prentice Hall.

Chicago Style aipamena

Walker, John R., and Josielyn T. Walker. Tourism: Concepts and Practices. Boston: Prentice Hall, 2011.

MLA aipamena

Walker, John R., and Josielyn T. Walker. Tourism: Concepts and Practices. Prentice Hall, 2011.