Müller. (2013). New Issues in Polar Tourism (1.). Springer Netherlands.
Cita Chicago (17th ed.)Müller. New Issues in Polar Tourism. 1. Springer Netherlands, 2013.
Cita MLA (8th ed.)Müller. New Issues in Polar Tourism. 1. Springer Netherlands, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.