Hall, C. M. (2009). Safety and security in tourism: Relationships,management and marketing. Jaico publishing house.
Chicago-tyylinen lähdeviittausHall, C. Michael. Safety and Security in Tourism: Relationships,management and Marketing. Ahamedabad: Jaico publishing house, 2009.
MLA-viiteHall, C. Michael. Safety and Security in Tourism: Relationships,management and Marketing. Jaico publishing house, 2009.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.