Ashworth, G. J. (1984). Recreation and tourism. Bell & Hyman.
Cita Chicago (17th ed.)Ashworth, G. J. Recreation and Tourism. London: Bell & Hyman, 1984.
Cita MLA (8th ed.)Ashworth, G. J. Recreation and Tourism. Bell & Hyman, 1984.
Atenció: Aquestes cites poden no estar 100% correctes.