APA-referens

Bull, A. (1995). The economics of travel and tourism (2nd ed.). Melbourne: Longman.

Chicago-stil citat

Bull, Adrian. The Economics of Travel and Tourism. 2nd ed. Melbourne: Longman, 1995.

MLA-referens

Bull, Adrian. The Economics of Travel and Tourism. 2nd ed. Melbourne: Longman, 1995.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.