Cita APA (7a ed.)
Helfrick, A. D., & Cooper, W. D. (1990). Modern electronic instrumentation and measurement techniques. Prentice Hall of India.
Cita Chicago Style (17a ed.)
Helfrick, Albert D., y William D. Cooper. Modern Electronic Instrumentation and Measurement Techniques. New Delhi: Prentice Hall of India, 1990.
Cita MLA (9a ed.)
Helfrick, Albert D., y William D. Cooper. Modern Electronic Instrumentation and Measurement Techniques. Prentice Hall of India, 1990.
Precaución: Estas citas no son 100% exactas.