Silsbee, Francis. Systems of Electrical Units(PDF). JOURNAL OF RESEARCH of the National Bureau of Standards- C. Engineering and Instrumentation. 1962, 66C (2): 137–183 [2016-07-26]. doi:10.6028/jres.066C.014. (原始内容存档(PDF)于2021-04-05) (英语).
Silsbee, Francis. Systems of Electrical Units(PDF). JOURNAL OF RESEARCH of the National Bureau of Standards- C. Engineering and Instrumentation. 1962, 66C (2): 137–183 [2016-07-26]. doi:10.6028/jres.066C.014. (原始内容存档(PDF)于2021-04-05) (英语).
Silsbee, Francis. Systems of Electrical Units(PDF). JOURNAL OF RESEARCH of the National Bureau of Standards- C. Engineering and Instrumentation. 1962, 66C (2): 137–183 [2016-07-26]. doi:10.6028/jres.066C.014. (原始内容存档(PDF)于2021-04-05) (英语).