Holt, C. M. (1999). Understanding NEC calculations (3rd ed.).
Chicagoスタイル(17版)引用形式Holt, Charles Michael. Understanding NEC Calculations. 3rd ed. Albany : Delmar Publishers, 1999.
MLA(9版)引用形式Holt, Charles Michael. Understanding NEC Calculations. 3rd ed. 1999.
警告: この引用は必ずしも正確ではありません.