United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry. (1947). Journal. [United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry. Journal. Washington, D.C.: [United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada, 1947.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry. Journal. [United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada, 1947.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.