APA Edition Citation

Helfrick, A. D., & Cooper, W. D. (1990). Modern electronic instrumentation and measurements techniques. PHI.

Chicago Edition Citation

Helfrick, Albert D., and Wlliam D. Cooper. Modern Electronic Instrumentation and Measurements Techniques. New Delhi: PHI, 1990.

MLA Edition Citation

Helfrick, Albert D., and Wlliam D. Cooper. Modern Electronic Instrumentation and Measurements Techniques. PHI, 1990.

Warning: These citations may not always be 100% accurate.