Vargas Ulate, G. (2013). TOURISM AND PROTECTED AREAS IN COSTA RICA: CONFRONTATION OR CONCILIATION.
Čikaški stil citiranjaVargas Ulate, Gilbert. TOURISM AND PROTECTED AREAS IN COSTA RICA: CONFRONTATION OR CONCILIATION. 2013.
MLA način citiranjaVargas Ulate, Gilbert. TOURISM AND PROTECTED AREAS IN COSTA RICA: CONFRONTATION OR CONCILIATION. 2013.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.