Cisin, H. G. (1922). Practical electrical engineering, direct currents: A manual for use in industrial and evening schools and for home study. D. Van Nostrand Company.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Cisin, Harry George. Practical Electrical Engineering, Direct Currents: A Manual for Use in Industrial and Evening Schools and for Home Study. New York: D. Van Nostrand Company, 1922.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Cisin, Harry George. Practical Electrical Engineering, Direct Currents: A Manual for Use in Industrial and Evening Schools and for Home Study. D. Van Nostrand Company, 1922.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.