Παραπομπή APA

Botterill, D., & Platenkamp, V. (2012). Key concepts in tourism research. Sage.

Παραπομπή Chicago Style

Botterill, David, και Vincent Platenkamp. Key Concepts in Tourism Research. California: Sage, 2012.

Παραπομπή MLA

Botterill, David, και Vincent Platenkamp. Key Concepts in Tourism Research. Sage, 2012.