Cita APA (7th ed.)
Conrady, R., & Buck, M. (2009). Trends and Issues in Global Tourism 2009. Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-540-92199-8
Cita Chicago (17th ed.)
Conrady, Roland, i Martin Buck. Trends and Issues in Global Tourism 2009. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. https://doi.org/10.1007/978-3-540-92199-8.
Cita MLA (9th ed.)
Conrady, Roland, i Martin Buck. Trends and Issues in Global Tourism 2009. Springer Berlin Heidelberg, 2009. https://doi.org/10.1007/978-3-540-92199-8.
Atenció: Aquestes cites poden no estar 100% correctes.