Carpena, A. L., Manguiat, P., del Rosario, E. E., Lalusin, A. G., Gueco, L. S., Reaño, C. E., . . . Quilloy, R. B. (2009). Development and release in the Philippines of sweetpotato variety 'NSIC Sp-31'. Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Carpena, Azucena L., Proceso Manguiat, Edwin E. del Rosario, Antonio G. Lalusin, Lavernee S. Gueco, Consorcia E. Reaño, Felicito M. Rodriguez, و Reynaldo B. Quilloy. "Development and Release in the Philippines of Sweetpotato Variety 'NSIC Sp-31'." Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist) 2009.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Carpena, Azucena L., et al. "Development and Release in the Philippines of Sweetpotato Variety 'NSIC Sp-31'." Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist), 2009.