Helfrick, A. D., & Cooper, W. D. (1990). Modern electronic instrumentation and measurement techniques. Prentice Hall of India ; Prentice Hall.
芝加哥风格引文Helfrick, Albert D., 与 William David Cooper. Modern Electronic Instrumentation and Measurement Techniques. New Delhi : Englewood Cliffs, N.J.: Prentice Hall of India ; Prentice Hall, 1990.
MLA引文Helfrick, Albert D., 与 William David Cooper. Modern Electronic Instrumentation and Measurement Techniques. Prentice Hall of India ; Prentice Hall, 1990.
警告：这些引文格式不一定是100％准确.