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