Lopez, A. A. (1959). Problems of instruction in the vernacular in selected grade one classes in the Baguio City public and private elementary schools.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Lopez, Aurea A. Problems of Instruction in the Vernacular in Selected Grade One Classes in the Baguio City Public and Private Elementary Schools. 1959.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Lopez, Aurea A. Problems of Instruction in the Vernacular in Selected Grade One Classes in the Baguio City Public and Private Elementary Schools. 1959.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.