APA (7th ed.) Citation

Salvado, J., Ferreira, A. M. A. P., & Costa, C. M. M. d. (2014). Travel agencies: From online channel conflict to multi-channel harmony.

Chicago Style (17th ed.) Citation

Salvado, Josefina, Ana Maria Alves Pedro Ferreira, and Carlos Manuel Martins da Costa. Travel Agencies: From Online Channel Conflict to Multi-channel Harmony. 2014.

MLA (8th ed.) Citation

Salvado, Josefina, et al. Travel Agencies: From Online Channel Conflict to Multi-channel Harmony. 2014.