(1945). Modern sewage treatment: A manual to aid civic leaders in demonstrating to their commuities the benefits of modern sewage treatment.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Modern Sewage Treatment: A Manual to Aid Civic Leaders in Demonstrating to Their Commuities the Benefits of Modern Sewage Treatment. 1945.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Modern Sewage Treatment: A Manual to Aid Civic Leaders in Demonstrating to Their Commuities the Benefits of Modern Sewage Treatment. 1945.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.