APA (7th ed.) Citation
Helfrick, A. D., & Cooper, W. D. (1990). Modern electronic instrumentation and measurement. Prentice Hall.
Chicago Style (17th ed.) Citation
Helfrick, A. D., and W. D. Cooper. Modern Electronic Instrumentation and Measurement. Englewood Cliffs: Prentice Hall, 1990.
MLA (9th ed.) Citation
Helfrick, A. D., and W. D. Cooper. Modern Electronic Instrumentation and Measurement. Prentice Hall, 1990.
Warning: These citations may not always be 100% accurate.