Cita APA (7th ed.)

Helfrick, A. D., & Cooper, W. D. (1995). Modern Electronic Instrumentation & Techniques. Prentice Hall Of India.

Cita Chicago (17th ed.)

Helfrick, Albert D., i William D. Cooper. Modern Electronic Instrumentation & Techniques. New Delhi: Prentice Hall Of India, 1995.

Cita MLA (9th ed.)

Helfrick, Albert D., i William D. Cooper. Modern Electronic Instrumentation & Techniques. Prentice Hall Of India, 1995.