Language Study & Research Center, Inc, Language Education Council of the Philippines, & Castillo, E. S. (1999). Educating via language. Language Study & Research Center and Language Education Council of the Philippines.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Language Study & Research Center, Inc, Language Education Council of the Philippines, و Emma S. Castillo. Educating via Language. [Manila]: Language Study & Research Center and Language Education Council of the Philippines, 1999.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Language Study & Research Center, Inc, et al. Educating via Language. Language Study & Research Center and Language Education Council of the Philippines, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.