Chinchilla-Arley, R. (2011). Virtual Library of Population and Health at Central American Population Center.
استشهاد بنمط شيكاغوChinchilla-Arley, Ricardo. Virtual Library of Population and Health At Central American Population Center. 2011.
MLA استشهادChinchilla-Arley, Ricardo. Virtual Library of Population and Health At Central American Population Center. 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.