(1931). Refuse disposal in American cities: A report / compiled by the Civic development department, Chamber of commerce of the United States.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Refuse Disposal in American Cities: A Report / Compiled by the Civic Development Department, Chamber of Commerce of the United States. 1931.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Refuse Disposal in American Cities: A Report / Compiled by the Civic Development Department, Chamber of Commerce of the United States. 1931.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.