Dyfyniad APA

Ryan, C. (2006). Recreational tourism: Demand and impacts. Viva books.

Dyfyniad Arddull Chicago

Ryan, Chris. Recreational Tourism: Demand and Impacts. New Delhi: Viva books, 2006.

Dyfyniad MLA

Ryan, Chris. Recreational Tourism: Demand and Impacts. Viva books, 2006.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.