National Association of Colliery Managers (London, England), & Association of Colliery Managers in India. (1960). Iron & coal trades review. Industrial Newspapers (Fuel & Metallurgical).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Association of Colliery Managers (London, England), و Association of Colliery Managers in India. Iron & Coal Trades Review. London: Industrial Newspapers (Fuel & Metallurgical), 1960.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)National Association of Colliery Managers (London, England), و Association of Colliery Managers in India. Iron & Coal Trades Review. Industrial Newspapers (Fuel & Metallurgical), 1960.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.