Cita APA (7th ed.)

Backer, E., & King, B. (2015). VFR travel research: International perspectives. Channel View Publications.

Cita Chicago (17th ed.)

Backer, Elisa, i Brian King. VFR Travel Research: International Perspectives. Bristol: Channel View Publications, 2015.

Cita MLA (9th ed.)

Backer, Elisa, i Brian King. VFR Travel Research: International Perspectives. Channel View Publications, 2015.