توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Briones, R. d. l. C. (1977). Growth and yield performance of sweet potato varieties differing in morphological characteristics [microform]. Photoduplication Service. University of the Philippines Library.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Briones, Ricardo de la Cruz. Growth and Yield Performance of Sweet Potato Varieties Differing in Morphological Characteristics [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Briones, Ricardo de la Cruz. Growth and Yield Performance of Sweet Potato Varieties Differing in Morphological Characteristics [microform]. Photoduplication Service. University of the Philippines Library, 1977.