APA引文

Vargas-Morúa, G., & Vargas-Morúa, E. (2015). Polio Crisis in Costa Rica: Lessons Learned and Achievements.

Citación estilo Chicago

Vargas-Morúa, Gioconda, y Elizarda Vargas-Morúa. Polio Crisis in Costa Rica: Lessons Learned and Achievements. 2015.

MLA引文

Vargas-Morúa, Gioconda, y Elizarda Vargas-Morúa. Polio Crisis in Costa Rica: Lessons Learned and Achievements. 2015.

警告：這些引文格式不一定是100％准確.