Iowa. State Board of Social Welfare. Report of the Department of Social Welfare. State Board of Social Welfare.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Iowa. State Board of Social Welfare. Report of the Department of Social Welfare. Des Moines: State Board of Social Welfare.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Iowa. State Board of Social Welfare. Report of the Department of Social Welfare. State Board of Social Welfare.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.