Acosta, I. P. M., & Ramos, J. L. A. (2008). An analysis of the perspectives of selected Cordilleran high school students on the learning and usage of English and its effects on Cordilleran identity.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Acosta, Ian Paolo M., و Jackie Lyn A. Ramos. An Analysis of the Perspectives of Selected Cordilleran High School Students on the Learning and Usage of English and Its Effects on Cordilleran Identity. 2008.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Acosta, Ian Paolo M., و Jackie Lyn A. Ramos. An Analysis of the Perspectives of Selected Cordilleran High School Students on the Learning and Usage of English and Its Effects on Cordilleran Identity. 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.