Yeoman, I., & Yu, R. L. (2012). 2050: Tomorrow's tourism. Channel View.
Cita Chicago Style (17a ed.)Yeoman, Ian, y Rebecca Li Yu. 2050: Tomorrow's Tourism. Bristol: Channel View, 2012.
Cita MLA (9a ed.)Yeoman, Ian, y Rebecca Li Yu. 2050: Tomorrow's Tourism. Channel View, 2012.
Precaución: Estas citas no son 100% exactas.