Helfrick, A. D. (1977). Modern electronic instrumentation and measurement techniques. Prentice-Hall of India.
シカゴスタイル引用形Helfrick, Albert D. Modern Electronic Instrumentation and Measurement Techniques. New Delhi: Prentice-Hall of India, 1977.
MLA引用形式Helfrick, Albert D. Modern Electronic Instrumentation and Measurement Techniques. Prentice-Hall of India, 1977.
警告: この引用は必ずしも正確ではありません.