Gaya APA

Petrova, P., Hristov, D. (2016). International Journal of Tourism Research (Volume 18, January-February 2016). United Kingdom: john Wiley and sons.

Gaya MLA

Petrova, Petia., Hristov, Dean. "International Journal of Tourism Research". Volume 18, January-February 2016 United Kingdom: john Wiley and sons, 2016. Serial.