Citazione Stile APA (7a Edizione)

Helfrick, A. D. (1992). Modern electronic instrumentation and measurement techniques. Prentice-Hall of India.

Citazione stile Chigago Style (17a edizione)

Helfrick, Albert D. Modern Electronic Instrumentation and Measurement Techniques. New Delhi: Prentice-Hall of India, 1992.

Citatione MLA (9a ed.)

Helfrick, Albert D. Modern Electronic Instrumentation and Measurement Techniques. Prentice-Hall of India, 1992.