Arias Sánchez, O., & Nations, J. D. A call for Central America Peace Parks.
Cita Chicago Style (17a ed.)Arias Sánchez, Oscar, y James D. Nations. A Call for Central America Peace Parks.
Cita MLA (9a ed.)Arias Sánchez, Oscar, y James D. Nations. A Call for Central America Peace Parks.
警告：這些引文格式不一定是100％准確.