West Virginia Pulp and Paper Company. Industrial Chemical Sales Division. (1937). The modern purifier. Industrial chemical sales division, West Virginia pulp & paper company.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)West Virginia Pulp and Paper Company. Industrial Chemical Sales Division. The Modern Purifier. New York, Chicago: Industrial chemical sales division, West Virginia pulp & paper company, 1937.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)West Virginia Pulp and Paper Company. Industrial Chemical Sales Division. The Modern Purifier. Industrial chemical sales division, West Virginia pulp & paper company, 1937.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.