Philippines (Commonwealth). Office of Adult Education, Philippines (Republic). Bureau of Public Schools, & Division of Adult Education. (1938). Philippine adult education series. Project no. 1- ([Bikol language edition].). Bureau of Print.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Philippines (Commonwealth). Office of Adult Education, Philippines (Republic). Bureau of Public Schools, و Division of Adult Education. Philippine Adult Education Series. Project No. 1-. [Bikol language edition]. Manila: Bureau of Print, 1938.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Philippines (Commonwealth). Office of Adult Education, et al. Philippine Adult Education Series. Project No. 1-. [Bikol language edition]. Bureau of Print, 1938.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.