Peña López, A. A. Central American labor migration: 1980-2000.
Cita Chicago Style (17a ed.)Peña López, Ana Alicia. Central American Labor Migration: 1980-2000.
Cita MLA (9a ed.)Peña López, Ana Alicia. Central American Labor Migration: 1980-2000.
警告：这些引文格式不一定是100％准确.