Παραπομπή APA

Helfrick, A. D. C. (2011). Modern electronic instrumentation and measurement techniques.

Παραπομπή Chicago Style

Helfrick, Albert D; Cooper. Modern Electronic Instrumentation and Measurement Techniques. Prentice-Hall of India Pvt. Ltd., New Delhi, 2011.

Παραπομπή MLA

Helfrick, Albert D; Cooper. Modern Electronic Instrumentation and Measurement Techniques. 2011.