Central Scientific Company. (1922). Laboratory apparatus for chemical, industrial, metallurgical, bacteriological, biological, board of health, hospital and soil testing laboratories. Central Scientific Co..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Central Scientific Company. Laboratory Apparatus for Chemical, Industrial, Metallurgical, Bacteriological, Biological, Board of Health, Hospital and Soil Testing Laboratories. Chicago: Central Scientific Co., 1922.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Central Scientific Company. Laboratory Apparatus for Chemical, Industrial, Metallurgical, Bacteriological, Biological, Board of Health, Hospital and Soil Testing Laboratories. Central Scientific Co., 1922.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.