Ryan, C. (1991). Recreational tourism: : a social science perspective. Routledge.
Cita Chicago Style (17a ed.)Ryan, Chris. Recreational Tourism: : A Social Science Perspective. London [etc.]: Routledge, 1991.
Cita MLA (9a ed.)Ryan, Chris. Recreational Tourism: : A Social Science Perspective. Routledge, 1991.
Precaución: Estas citas no son 100% exactas.