Williams, P. D. Filipino children's concepts of body organs and illnesses. NSTA-UPS Integrated Research Program, University of the Philippines.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Williams, Phoebe D. Filipino Children's Concepts of Body Organs and Illnesses. Diliamn, Quezon City: NSTA-UPS Integrated Research Program, University of the Philippines.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Williams, Phoebe D. Filipino Children's Concepts of Body Organs and Illnesses. NSTA-UPS Integrated Research Program, University of the Philippines.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.