APA-referens

Helfrick, A. D. (1977). Modern electronic instrumentation and measurement techniques. Prentice-Hall of India.

Chicago-stil citat

Helfrick, Albert D. Modern Electronic Instrumentation and Measurement Techniques. New Delhi: Prentice-Hall of India, 1977.

MLA-referens

Helfrick, Albert D. Modern Electronic Instrumentation and Measurement Techniques. Prentice-Hall of India, 1977.

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