APA (7th ed.) Zitazioa
ebrary, Inc, Robinson, P., Heitmann, S., & Dieke, P. U. C. (2010). Research themes for tourism. CABI.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, Peter Robinson, Sine Heitmann, eta Peter U. C. Dieke. Research Themes for Tourism. Wallingford, Oxfordshire ; Cambridge, Mass.: CABI, 2010.
MLA (9th ed.) Zitazioa
ebrary, Inc, et al. Research Themes for Tourism. CABI, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.