Cita APA (7th ed.)

Helfrick, A. D., & Cooper, W. D. (1990). Modern electronic instrumentation and measurement techniques. Prentice Hall of India ; Prentice Hall.

Cita Chicago (17th ed.)

Helfrick, Albert D., i William David Cooper. Modern Electronic Instrumentation and Measurement Techniques. New Delhi : Englewood Cliffs, N.J.: Prentice Hall of India ; Prentice Hall, 1990.

Cita MLA (8th ed.)

Helfrick, Albert D., i William David Cooper. Modern Electronic Instrumentation and Measurement Techniques. Prentice Hall of India ; Prentice Hall, 1990.