Punzalan, A. H. P. (2004). The roles and relationships of members of the family with a functionally disabled elderly.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Punzalan, Alice Hermilyn Pagala. The Roles and Relationships of Members of the Family with a Functionally Disabled Elderly. 2004.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Punzalan, Alice Hermilyn Pagala. The Roles and Relationships of Members of the Family with a Functionally Disabled Elderly. 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.